{ "spec_version": "4", "endpoint": "history", "stock_code": "8050", "company_name": "セイコーグループ", "content_lang": "ja", "meta_lang": "en", "canonical_url": "https://the-shashi.com/tse/8050/decisions/", "api_url": "/api/8050/history.json", "updated": "2026-10-03", "license": "© 2026 Yutaka Sugiura. All rights reserved.", "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/8050/decisions/", "source": { "long_term": { "primary": [ "有価証券報告書" ], "extraction": "EDINET の XBRL、kabupro 掲載の旧有価証券報告書、会社年鑑・社史等からの転記", "row_field": "reference", "caveat": "創業期から現在までを 1 本に繋いだ長期系列のため、年代により出所・単位・連結範囲が変わる。行ごとの reference / unit / consolidation を必ず参照すること" }, "decisions": { "html_url": "https://the-shashi.com/tse/8050/decisions/", "primary": [ "企業の公表資料", "新聞・雑誌記事" ], "extraction": "本文は API に載せない。行ごとの html_url のページを参照すること" } }, "title": "セイコーグループの歴史概略", "eras": [ { "title": "服部金太郎の服部時計店創業と精工舎の時計製造", "start_year": 1881, "end_year": 1916, "phase": "founding" }, { "title": "服部時計店の会社組織化と第二精工舎の分離独立", "start_year": 1917, "end_year": 1946, "phase": "growth" }, { "title": "和光の分離と世界初のクオーツウオッチの発売", "start_year": 1947, "end_year": 1982, "phase": "growth" }, { "title": "服部セイコーへの改称と持株会社体制への移行", "start_year": 1983, "end_year": 2008, "phase": "transformation" }, { "title": "セイコーインスツル統合とグランドセイコーの独立ブランド化", "start_year": 2009, "end_year": 2026, "phase": "transformation" } ], "overview": [ { "label": "創業", "text": "1881年12月、服部金太郎氏が東京で時計商の服部時計店を創業した。中古時計の売買と修繕で時計の構造を知り抜いたうえで、1892年3月に製造工場の精工舎を設け、掛時計から目覚時計、懐中時計へと国産の量産を広げている。1949年に東京証券取引所へ上場。1959年には第二精工舎の諏訪工場が分離独立して諏訪精工舎（現セイコーエプソン）となり、社内に二つの製造系譜が並び立った。商号は1983年に服部セイコー、1997年にセイコー、2007年にセイコーホールディングス、2022年にセイコーグループへと改めている。" }, { "label": "決断", "text": "自分の優位を先に壊し、壊した先の技術を他社へ開いた。機械式の精度で世界と競っていた1969年12月、諏訪精工舎の開発した[世界初のクオーツウオッチ\"アストロン\"を発売した](/tse/8050/decisions/quartz-revolution-1969/)。機械式の百倍を超える精度を製品にしたうえで関連特許を公開し、クオーツを一社の製品から世界共通の駆動方式へ広げている。対応の遅れたスイス勢は市場の首位から転落した。開いた技術は事業の多極化も呼び、1983年の服部セイコーへの改称以降、水晶振動子・電子部品・半導体・プリンタが時計に次ぐ事業へ育つ。1996年から続けた事業別の分社の総仕上げとして、2001年7月には[祖業のウオッチ事業まで切り出し、本体を持株会社へ移行した](/tse/8050/decisions/holding-company-2001/)。祖業まで子会社へ差し出したことが、単一メーカーからグループ経営への切り替えを決めた。" }, { "label": "現況", "text": "半導体とプリンタを外した結果、グループは再び時計の会社になった。2017年3月期に半導体事業を日本政策投資銀行との共同出資会社へ移し、大判プリンタ事業を沖データへ譲渡している。2026年3月期の連結売上高は3,356億円、営業利益309億円で、ウオッチを中心とするエモーショナルバリューソリューションが売上高2,180億円・セグメント利益286億円を占め、デバイスソリューション598億円・利益38億円、システムソリューション550億円・利益55億円が続く。同じ2017年3月には[グランドセイコーをSEIKOから切り離して独立ブランドにし](/tse/8050/decisions/grand-seiko-independence-2017/)、2020年には盛岡セイコー工業の敷地内へグランドセイコースタジオ雫石を設けた。安く正確な時計で世界を覆った会社が、その反対側の価格帯で全社の利益の大半を稼いでいる。" }, { "label": "競合", "text": "相手はスイスの老舗であって、国内の同業ではない。1969年のクオーツは安く正確な時計を世界へ行き渡らせ、機械式の本場を一度は退けた。ところが半世紀後、消費者がデザインとブランドで時計を選ぶようになると、量産で築いたSEIKOの位置づけが高価格帯では制約に変わる。同じ電子化を進めた[電卓の電子技術を腕時計へ転用したカシオ計算機](/tse/6952/decisions/digital-watch-1974/)が耐衝撃という用途と量販店の売り場で伸びたのに対し、セイコーは機械式の工房と職人を抱え続けた側であり、そこを起点に独立ブランドへ切り替えた。1969年に自ら陳腐化させた機械式へ、半世紀後に最高級ラインで戻っている。" } ], "profile": [ { "key": "founding_business", "label": "祖業", "value": "時計の販売と修繕" }, { "key": "current_issue", "label": "現在の注力課題", "value": "グランドセイコーの海外展開と単価向上", "tags": [ "高付加価値化", "ブランディング" ] } ], "lineage": { "path": "8050-lineage-top.v2.json" }, "timelineLead": "1881年に服部金太郎氏が東京で創業した時計商の服部時計店が起源。\n1964年に東京オリンピックの公式計時を担い、1969年には世界初のクオーツウオッチ「アストロン」を発売した。ウオッチが売上の6割強と利益の大半を占める時計メーカーで、グランドセイコーを独立ブランドに据える。", "lineageLead": "前身は1881年に服部金太郎氏が創業した服部時計店。\n1947年に小売部門を分離して和光を設立し、2001年に持株会社体制へ移行した。2009年にはセイコーインスツルを経営統合し、2022年にセイコーグループへ商号変更。持株会社体制の下で事業ポートフォリオを再編した。", "summary": { "description": "セイコーグループ（旧服部時計店）の歴史。1881年、服部金太郎氏が東京で時計商として創業。精工舎、世界初のクオーツウオッチ「アストロン」、持株会社化、グランドセイコー独立までの沿革と経緯を執筆。" }, "long_term": [ { "year": 1949, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1950, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1951, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1952, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1953, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1954, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1955, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1956, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1957, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1958, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1959, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1960, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1961, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1962, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1963, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1964, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1965, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1966, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1967, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1968, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1969, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1970, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1971, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1972, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1973, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1974, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1975, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1976, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1977, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1978, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1979, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1980, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1981, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1982, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1983, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1984, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1985, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1986, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1987, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1988, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1989, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1990, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1991, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1992, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1993, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1994, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1995, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1996, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1997, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1998, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1999, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 2000, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 2001, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 2002, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 2003, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 2004, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 2005, "month": 3, "company_name": "セイコーグループ", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 2006, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2137, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 86, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 92, "net_margin": 4.305, "employees": null, "reference": null }, { "year": 2007, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2092, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 74, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 99, "net_margin": 4.732, "employees": null, "reference": null }, { "year": 2008, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2140, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 73, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 32, "net_margin": 1.495, "employees": null, "reference": null }, { "year": 2009, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 1740, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": -47, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": -58, "net_margin": -3.334, "employees": null, "reference": null }, { "year": 2010, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2308, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": -19, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": -36, "net_margin": -1.56, "employees": null, "reference": null }, { "year": 2011, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 3139, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 66, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 22, "net_margin": 0.7, "employees": null, "reference": null }, { "year": 2012, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2969, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 13, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": -110, "net_margin": -3.705, "employees": 15968, "reference": null }, { "year": 2013, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2838, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 32, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 55, "net_margin": 1.937, "employees": 14712, "reference": null }, { "year": 2014, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 3083, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 102, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 74, "net_margin": 2.4, "employees": 13439, "reference": null }, { "year": 2015, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2935, "operating_profit_jp": "営業利益", "operating_profit": 117, "ordinary_profit_jp": "経常利益", "ordinary_profit": 124, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 218, "net_margin": 7.427, "employees": 13565, "reference": null }, { "year": 2016, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2967, "operating_profit_jp": "営業利益", "operating_profit": 133, "ordinary_profit_jp": "経常利益", "ordinary_profit": 119, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 121, "net_margin": 4.078, "employees": 13437, "reference": null }, { "year": 2017, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2571, "operating_profit_jp": "営業利益", "operating_profit": 75, "ordinary_profit_jp": "経常利益", "ordinary_profit": 67, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 54, "net_margin": 2.1, "employees": 13065, "reference": null }, { "year": 2018, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2685, "operating_profit_jp": "営業利益", "operating_profit": 108, "ordinary_profit_jp": "経常利益", "ordinary_profit": 109, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 115, "net_margin": 4.283, "employees": 12033, "reference": null }, { "year": 2019, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2473, "operating_profit_jp": "営業利益", "operating_profit": 94, "ordinary_profit_jp": "経常利益", "ordinary_profit": 114, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 92, "net_margin": 3.72, "employees": 12020, "reference": null }, { "year": 2020, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2392, "operating_profit_jp": "営業利益", "operating_profit": 61, "ordinary_profit_jp": "経常利益", "ordinary_profit": 70, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 34, "net_margin": 1.421, "employees": 11947, "reference": null }, { "year": 2021, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2027, "operating_profit_jp": "営業利益", "operating_profit": 22, "ordinary_profit_jp": "経常利益", "ordinary_profit": 6, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 35, "net_margin": 1.726, "employees": 12092, "reference": null }, { "year": 2022, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2374, "operating_profit_jp": "営業利益", "operating_profit": 88, "ordinary_profit_jp": "経常利益", "ordinary_profit": 99, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 64, "net_margin": 2.695, "employees": 11984, "reference": null }, { "year": 2023, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2605, "operating_profit_jp": "営業利益", "operating_profit": 112, "ordinary_profit_jp": "経常利益", "ordinary_profit": 112, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 50, "net_margin": 1.919, "employees": 11843, "reference": null }, { "year": 2024, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 2768, "operating_profit_jp": "営業利益", "operating_profit": 147, "ordinary_profit_jp": "経常利益", "ordinary_profit": 159, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 101, "net_margin": 3.648, "employees": 11740, "reference": null }, { "year": 2025, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 3047, "operating_profit_jp": "営業利益", "operating_profit": 212, "ordinary_profit_jp": "経常利益", "ordinary_profit": 208, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 133, "net_margin": 4.364, "employees": 11367, "reference": null }, { "year": 2026, "month": 3, "company_name": "セイコーグループ", "consolidation": "連結", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 3357, "operating_profit_jp": "営業利益", "operating_profit": 309, "ordinary_profit_jp": "経常利益", "ordinary_profit": 331, "net_profit_jp": "親会社株主に帰属する当期純利益", "net_profit": 220, "net_margin": 6.553, "employees": 11326, "reference": null } ], "decisions": [ { "main_title": "「アストロン」の特許公開", "sub_title": "世界初のクオーツウオッチの技術を開放したことによるデファクト化", "year": 1969, "type": "transformation", "html_url": "https://the-shashi.com/tse/8050/decisions/quartz-revolution-1969/" }, { "main_title": "セイコーウオッチの設立", "sub_title": "持株会社体制への移行と、祖業であるウオッチ事業の切り出し", "year": 2001, "type": "reorganization", "html_url": "https://the-shashi.com/tse/8050/decisions/holding-company-2001/" }, { "main_title": "村野晃一氏の解任と服部真二氏への継承", "sub_title": "取締役会による創業家出身・服部真二氏の社長登板", "year": 2010, "type": "succession", "html_url": "https://the-shashi.com/tse/8050/decisions/governance-crisis-2010/" }, { "main_title": "グランドセイコーの独立ブランド化", "sub_title": "日本発ラグジュアリーへの転換", "year": 2017, "type": "transformation", "html_url": "https://the-shashi.com/tse/8050/decisions/grand-seiko-independence-2017/" } ] }