Seiko (English Wikipedia)

"商号の変更および定款の一部変更に関するお知らせ" [Announcement of Change in Trade Name and Partial Amendment to Articles of Incorporation] (PDF) (Press release) (in Japanese). Seiko Holdings Corporation. Grand 2010–2022 andy low. May 10, 2022. Retrieved May 11, 2022.
"2025年3月期通期決算説明会" (PDF). Seiko Group Corporation. Archived from the original (PDF) on June 3, 2025.

europastar.com (Global: low place; English: low place)

"Credor goes global". Europa Star. Archived from the original on March 26, 2026. Retrieved March 26, 2026.
"Seiko and the 2002 FIFA World Cup". Europa Star. February 2001. Retrieved March 5, 2021.

eurosport.com (Global: 1,240^th place; English: 993^rd place)

"Honda pulls out of Formula One". EuroSport. December 5, 2008. Retrieved July 29, 2020.

fliegerfriday.com (Global: low place; English: low place)

"Flieger Friday: Seikosha Kamikaze – Flieger Friday".

flightbirds.net (Global: low place; English: low place)

"The Imperial Japanese Navy 'Air Soldier' Weems". Flight Birds. April 19, 2022. Retrieved June 8, 2026.

forbes.com (Global: 71^st place; English: 54^th place)

Derr, Elizabeth (December 16, 2016). "Seiko Nets Renewed Partnership With Novak Djokovic". Forbes. Retrieved January 1, 2021.

forbesjapan.com (Global: 5,995^th place; English: low place)

美しくあれ！時を豊かにするためにクレドールは進化する (in Japanese). Forbes Japan. November 30, 2020. Archived from the original on April 20, 2025. Retrieved April 20, 2025.
ブランドイメージを視覚化せよ！クレドールのロゴマーク誕生秘話から読み解く「ジャパンメイドの矜持」 (in Japanese). Forbes Japan. July 1, 2020. Archived from the original on April 20, 2025. Retrieved April 20, 2025.
勝負の鍵はジュエリーウォッチ！時計大国に挑むクレドールの初志は「日本ならではの美」だった (in Japanese). Forbes Japan. July 30, 2020. Archived from the original on April 20, 2025. Retrieved April 20, 2025.
どこまでも薄く、美しく! 熱い想いで連綿と受け継がれてきた「透ける時計」、スケルトンウォッチ (in Japanese). Forbes Japan. July 30, 2020. Archived from the original on April 20, 2025. Retrieved April 20, 2025.
伝統工芸で活路を開く！独自の世界観を確立した「職人の至芸」 (in Japanese). Forbes Japan. November 10, 2020. Archived from the original on April 20, 2025. Retrieved April 20, 2025.

ft.com (Global: 193^rd place; English: 127^th place)

"Seiko sets its sights on high-quality mechanical market". Financial Times. September 28, 2015. Archived from the original on October 1, 2019. Retrieved January 18, 2022.
"Akio Naito: Seiko watches have to go back to their roots to grow again". Financial Times. October 1, 2021. Retrieved April 6, 2023.

gamespot.com (Global: 115^th place; English: 92^nd place)

Espineli, Matt (November 25, 2015). "Here's What a $375 Metal Gear Solid Watch Looks Like". GameSpot. Retrieved July 29, 2020.

gearpatrol.com (Global: low place; English: low place)

"Go Behind the Scenes of One of the Most Impressive Watchmaking Operations in the World". Gear Patrol, LLC. February 8, 2018. Archived from the original on December 3, 2022. Retrieved February 3, 2023.
"This is the Seiko Watch Made for Japanese Pilots During WWII". September 12, 2019.
Love, Zen (September 12, 2019). "This Is the Seiko Watch Made for Japanese Pilots During WWII". Gear Patrol. Retrieved October 2, 2022.
"Grand Seiko Just Revolutionized Watch Accuracy. Again". Gear Patrol. March 31, 2025. Archived from the original on April 3, 2025. Retrieved April 3, 2025.

gphg.org (Global: low place; English: low place)

"Seiko, Spacewalk, Commemorative Edition". www.gphg.org (in French). Retrieved July 5, 2024.

grail-watch.com (Global: low place; English: low place)

reference.grail-watch.com

grand-seiko.com (Global: low place; English: low place)

"A new era in the history of Grand Seiko begins with Spring Drive U.F.A." Grand Seiko. Retrieved June 8, 2026.
"The Shinshu Watch Studio". Seiko. Archived from the original on June 17, 2025.
"The Grand Seiko Studio Shizukuishi". Seiko. Archived from the original on June 17, 2025.
"Masterpiece Collection". Seiko. Archived from the original on May 15, 2025.
"History". Grand Seiko. Retrieved July 1, 2024.
"Design | About | Grand Seiko". www.grand-seiko.com. Retrieved December 12, 2017.
"Grand Seiko". www.grand-seiko.com. Retrieved December 2, 2016.
"Grand Seiko". www.grand-seiko.com. Retrieved December 2, 2016.
"The Grand Seiko Standard Inspection Certificate". www.grand-seiko.com. Retrieved July 1, 2024.
"9S Mechanical". Seiko. Archived from the original on March 11, 2025. Retrieved April 3, 2025.
"Grand Seiko's first mechanical complication combines a constant-force mechanism and a tourbillon as one unit on a single axis". Seiko. Archived from the original on January 29, 2025. Retrieved April 20, 2025.
"Quartz". Grand Seiko. Retrieved July 5, 2024.
"Quartz". Grand Seiko. Retrieved December 13, 2024.
"History of Spring Drive". www.grand-seiko.com. Retrieved July 5, 2024.
"9R Spring Drive". Seiko. Archived from the original on April 3, 2025. Retrieved April 20, 2025.

gressive.jp (Global: low place; English: low place)

“東洋の時計王”服部金太郎が築いた時計王国「セイコー」の基盤 (in Japanese). Bestnavi.jp company. Archived from the original on August 17, 2025.
服部時計店のウオッチ製造部門『第二精工舎』誕生 (in Japanese). Bestnavi.jp company. Archived from the original on July 17, 2025.

hbr.org (Global: 4,164^th place; English: 2,641^st place)

store.hbr.org

Hoosain, A., Ho, M., Farhoomand, A. and Hout, T., 2007. Seiko Watch Corporation: Moving Upmarket ^ HKU658. [online] Harvard Business Review. Available at: <https://store.hbr.org/product/seiko-watch-corporation-moving-upmarket/HKU658> [Accessed 18 January 2022].

hodinkee.com (Global: low place; English: 8,315^th place)

Thompson, Joe (October 10, 2017). "Four Revolutions: Part 1: A Concise History Of The Quartz Revolution". Hodinkee. Archived from the original on May 30, 2019.
"Grand Seiko Achieves World-Record Mechanical Accuracy In The SLGB001 And SLGB003 – Plus Micro-Adjust Is Now Here". Hodinkee. March 31, 2025. Archived from the original on April 3, 2025. Retrieved April 3, 2025.
"The Seiko FUGAKU Limited Edition Tourbillon". Hodinkee. April 7, 2016. Archived from the original on December 26, 2022. Retrieved April 20, 2025.
Forster, Jack (December 8, 2016). "Introducing: The Seiko Presage Automatic 60th Anniversary Limited Edition, SARW027". Hodinkee. Retrieved December 12, 2019.
"Introducing: A Trilogy Of Seiko 55th Anniversary Dive Watches – HODINKEE".
Thompson, Joe (October 10, 2017). "Four Revolutions: Part 1: A Concise History Of The Quartz Revolution". Hodinkee. Retrieved March 5, 2019.

hosei.ac.jp (Global: low place; English: low place)

riim.ws.hosei.ac.jp

"セイコーエプソン・事業多角化の起源" (PDF). The Research Institute for Innovation Management, Hosei University. Archived from the original (PDF) on April 16, 2024.

hoya.com (Global: low place; English: low place)

"Hoya Report 2015" (PDF) (in Japanese). Hoya Corporation. Archived from the original (PDF) on August 2, 2023. Retrieved June 6, 2025.

iaaf.org (Global: 381^st place; English: 369^th place)

"Partners – Seiko". IAAF. Retrieved March 5, 2017.

j-paris.co.jp (Global: low place; English: low place)

文字板に込めた、それぞれの製造地への想い (in Japanese). Jewelry Paris Inc. February 12, 2021. Archived from the original on February 24, 2021. Retrieved February 3, 2023.

jisin.jp (Global: 4,386^th place; English: low place)

"「欠品が続くほど」大谷翔平着用時計が常に話題！スポンサー契約のSEIKO担当者が語った驚きの"広告効果"". Kobunsha Co., Ltd. Archived from the original on November 8, 2024. Retrieved May 15, 2025.

keepthetime.com (Global: low place; English: low place)

"Watch Identifier: Seiko Wired Metal Gear Solid Watch Review". Keep The Time. April 5, 2017. Retrieved July 29, 2020.

luxuo.com (Global: low place; English: low place)

Soman, Ashok (September 24, 2021). "Seiko President Akio Naito on Making the Sports Watch Work for Grand Seiko". Luxuo. Retrieved April 6, 2023.

mainichi.jp (Global: 257^th place; English: 1,209^th place)

セイコー/19　自社製時計の名称をセイコーに統一＝広岩近広 (in Japanese). Mainichi Shimbun. Archived from the original on June 21, 2024.

monochrome-watches.com (Global: low place; English: low place)

"The Grand Seiko Kodo Constant-Force Tourbillon SLGT003". MONOCHROME. March 31, 2022. Archived from the original on April 3, 2022.

montrespubliques.com (Global: low place; English: low place)

"Seiko 5, The People's Watch". Montres Publiques. September 21, 2019. Retrieved April 6, 2023.
"Lord Marvel and King Seiko History". Montres Publiques. August 4, 2020. Retrieved April 6, 2023.

morioka-seiko.co.jp (Global: low place; English: low place)

関係会社2社「二戸時計工業株式会社」、「遠野精器株式会社」社名変更のお知らせ (in Japanese). Morioka Seiko Instruments. Archived from the original on November 14, 2025.

nasl.com (Global: low place; English: low place)

"NASL welcomes Seiko as official timekeeper". NASL. April 11, 2014. Retrieved March 2, 2017.

nii.ac.jp (Global: 195^th place; English: 1,046^th place)

meiji.repo.nii.ac.jp

"日本の時計製造産地におけるサプライヤーの再編" (PDF). Meiji University. pp. 12, 13. Archived from the original (PDF) on July 6, 2025. Retrieved August 5, 2025.

oracleoftime.com (Global: low place; English: low place)

"The Worlds of Seiko, Grand Seiko and Credor with President Akio Naito". Oracle Time. June 5, 2026. Archived from the original on June 8, 2026.

plus9time.com (Global: low place; English: low place)

"Baselworld 2018 Releases – Seiko Presage". Plus9Time. March 22, 2018. Retrieved October 14, 2020.

revolutionwatch.com (Global: low place; English: low place)

"A Deep Dive into the Grand Seiko Caliber 9SA5". Revolution Watch. May 19, 2022. Archived from the original on April 24, 2025. Retrieved April 24, 2025.

sanko-e.co.jp (Global: low place; English: low place)

"和光ビル（旧服部時計店本社ビル）". Sanko Estate Co., Ltd. Archived from the original on January 13, 2023.

seiko.co.jp (Global: low place; English: low place)

museum.seiko.co.jp

"History of Seiko and Its Products". The Seiko Museum. Retrieved October 14, 2017.
Historical references, Ginza Museum
Spirit of Kintaro Hattori, the Founder (SEIKO)
Impact of the western companies of Yokohama
Foreign trading firms in Yokohama
Historical references from 1860 to 1880
K. Hattori & Co. (1881–1891)
Episode 3 (1892) Seikosha Factory
"Technical Challenges at the Observatory Chronometer Competition in Switzerland". Seiko Holdings Corporation. Archived from the original on April 3, 2022.
"The Quartz Crisis and Recovery of Swiss Watches". The Seiko Museum. Archived from the original on March 6, 2019.

seiko.co.jp

"Corporate Information & Access Map". Seiko Group Corporation.
"Consolidated Financial Results for the Year Ended March 31, 2025" (PDF). Seiko Group Corporation. Retrieved June 5, 2025.
"Seiko Quality" (in Japanese). Seiko Group Corporation. Archived from the original on February 3, 2023. Retrieved February 3, 2023.
"History－Details". Seiko. Archived from the original on March 26, 2025.
"Affiliated Companies". Seiko Group Corporation. Archived from the original on November 14, 2025.
国内腕時計３工場で、使用電力を100％再生可能エネルギー化 (in Japanese). Seiko. Archived from the original on July 22, 2025.
連結子会社の解散に関するお知らせ (PDF) (in Japanese). Seiko. Archived from the original (PDF) on June 6, 2025. Retrieved June 6, 2025.
"History of Seiko and Sports". Seiko. Retrieved January 1, 2021.

seikoboutique.co.uk (Global: low place; English: low place)

Seikoboutique.co.uk. 2021. Prospex 'Shogun' | Seiko Boutique. [online] Available at: <https://www.seikoboutique.co.uk/product/prospex-shogun-2/> [Accessed 12 January 2022].

seikowatches.com (Global: low place; English: low place)

"Corporate Profile". Seiko Watch Corporation.
"Our Heritage". Seiko Watch Corporation. Archived from the original on April 3, 2022.
"Ginza Limited Edition". Seiko. Archived from the original on February 14, 2025.
セイコー腕時計の歴史 (in Japanese). Seiko Watch Corporation. Archived from the original on December 4, 2022. Retrieved February 3, 2023.
事業拠点 (in Japanese). Seiko Watch Corporation. Archived from the original on April 1, 2025.
"About – Seiko 5 Sports". www.seikowatches.com. Retrieved December 6, 2021.
"Astron". Seiko Watch Corporation. Retrieved July 31, 2024.
"The Shippo Enamel Limited Edition". The Shippo Enamel Limited Edition. Retrieved October 14, 2020.
キングセイコーから新生KSK誕生。現代人の感性を刺激する、時代を超えた造形 (in Japanese). Seiko. Archived from the original on December 13, 2024. Retrieved April 21, 2025.
"VANAC". Seiko. Archived from the original on March 9, 2025. Retrieved April 20, 2025.
＜クレドール＞スケルトンモデルの誕生25周年を記念して、ハンドワークの粋を極めた「Art Piece Collection」の最高峰モデルが登場 (in Japanese). Seiko. June 23, 2021. Archived from the original on November 16, 2023. Retrieved April 20, 2025.
高級ウオッチブランド＜クレドール＞より、新開発ムーブメントに独自の立体彫金と高度な漆芸の技を融合させたセイコー初のトゥールビヨンモデル「FUGAKU」を発売～世界的に評価の高い名作浮世絵「富嶽三十六景」からインスピレーション～ (in Japanese). Seiko. March 17, 2016. Archived from the original on November 13, 2024. Retrieved April 21, 2025.
"SRE014". Seiko. Archived from the original on February 25, 2025. Retrieved April 20, 2025.
"Specifications 2R505". Seiko. Archived from the original on December 9, 2024. Retrieved April 20, 2025.
"SSA423". Seiko. Archived from the original on January 24, 2025. Retrieved April 20, 2025.
"Specifications 4R39". Seiko. Archived from the original on January 15, 2025. Retrieved April 20, 2025.
"SSA461". Seiko. Archived from the original on March 17, 2025. Retrieved April 20, 2025.
"SJE105". Seiko. Archived from the original on December 28, 2024. Retrieved April 20, 2025.
"Specifications 6R51". Seiko. Archived from the original on October 12, 2024. Retrieved April 20, 2025.
"SJE097". Seiko. Archived from the original on December 28, 2024. Retrieved April 20, 2025.
"SPB291". Seiko. Archived from the original on April 5, 2025. Retrieved April 20, 2025.
"Specifications 6R31". Seiko. Archived from the original on October 3, 2024. Retrieved April 20, 2025.
"SPB457". Seiko. Archived from the original on January 15, 2025. Retrieved April 20, 2025.
"Specifications 6R51". Seiko. Archived from the original on October 12, 2024. Retrieved April 20, 2025.
"SPB447". Seiko. Archived from the original on March 23, 2025. Retrieved April 20, 2025.
"Specifications 6R54". Seiko. Archived from the original on December 7, 2024. Retrieved April 20, 2025.
"SPB387". Seiko. Archived from the original on December 28, 2024. Retrieved April 20, 2025.
"SPB449". Seiko. Archived from the original on March 7, 2025. Retrieved April 20, 2025.
"SPB469". Seiko. Archived from the original on December 28, 2024. Retrieved April 20, 2025.
"SPB303". Seiko. Archived from the original on December 28, 2024. Retrieved April 20, 2025.
"Specifications 6R64". Seiko. Archived from the original on November 9, 2024. Retrieved April 20, 2025.
"SLA083". Seiko. Archived from the original on April 5, 2025. Retrieved April 20, 2025.
"The Story of 1969 Quartz Astron and GPS solar Astron". The Story of 1969 Quartz Astron and GPS solar Astron. Retrieved July 1, 2024.
"Shohei Ohtani is appointed global ambassador of the Seiko brand". Seiko Watch Corporation. April 9, 2026. Archived from the original on May 9, 2026. Retrieved June 18, 2026.
"Star Time". Seiko Watch. Archived from the original on July 6, 2026. Retrieved July 6, 2026.

seiyajapan.com (Global: low place; English: low place)

"The History of Grand Seiko". seiyajapan.com. Retrieved December 2, 2016.

sii.co.jp (Global: low place; English: low place)

会社沿革 (in Japanese). Seiko Instruments. Archived from the original on April 27, 2025.
"Metronomes". Seiko Instruments Inc. Retrieved June 2, 2024.

sportcal.com (Global: low place; English: 8,927^th place)

"Seiko Confirms New Partnership With Honda Racing F1 Team and Jenson Button". Sportcal. Retrieved July 12, 2024.

sportspromedia.com (Global: 4,495^th place; English: 3,001^st place)

Emmet, James (March 10, 2014). "Report: FC Barcelona to swap Seiko for Maurice Lacroix". SportsPro. Retrieved July 10, 2024.

strapcode.com (Global: low place; English: low place)

"Grand Seiko GS 45GS V.F.A." strapcode.com. Retrieved October 7, 2020.
"Grand Seiko for Women 19GS". strapcode.com. Retrieved October 7, 2020.
"Grand Seiko Hi Beat Caliber 9S85". strapcode.com. Retrieved October 7, 2020.
"Seiko mechanical movements – Seiko caliber 8L35 Review". Strapcode.
"About Seiko Kinetic watches and Kinetic Movements". Strapcode.com.

team18.com.au (Global: low place; English: low place)

"Team 18 reveals Scott Pyes Seiko 5 Sports supercar". Team 18. Archived from the original on April 20, 2025. Retrieved June 3, 2025.

teddybaldassarre.com (Global: low place; English: low place)

"New Seiko x Shohei Ohtani Limited Edition Prospex GMT Divers For 2025". January 2, 2025. Archived from the original on May 15, 2025. Retrieved May 15, 2025.

the-shashi.com (Global: low place; English: low place)

セイコーエプソンの歴史 (in Japanese). Shashi.com. Archived from the original on May 13, 2025.

theclockhouse.jp (Global: low place; English: low place)

"大谷翔平選手にちなんだ腕時計特集". Archived from the original on January 25, 2025. Retrieved May 15, 2025.

tickingtales.com (Global: low place; English: low place)

"Seiko Prospex 1968 Heritage Diver GMT – Exclusive to Europe". TickingTales. October 8, 2025. Retrieved October 16, 2025.
Daniel Razvan (June 23, 2026). "King Seiko VANAC – 70's Glamour from Japan". TickingTales. Retrieved June 23, 2026.

timeandtidewatches.com (Global: low place; English: low place)

"Grand Seiko Manufacture Tour Part 2: The Seiko Museum in Ginza". Time and Tide Watches. July 23, 2023. Archived from the original on August 13, 2023.
"Grand Seiko Manufacture Tour Part 4: Chatting with the man behind the Kodo at Atelier Ginza". Time and Tide Watches. August 20, 2023. Archived from the original on June 24, 2024.
"Grand Seiko Manufacture Tour Part 3: The Seiko House Ginza (Wako Main Building)". Time and Tide Watches. August 6, 2023. Archived from the original on April 29, 2025.
"That time we asked an independent watchmaker why the Grand Seiko 9SA5 caliber is so remarkable". Time+Tide. November 2020. Archived from the original on April 8, 2025. Retrieved April 24, 2025.

toyokeizai.net (Global: 1,451^st place; English: 7,128^th place)

"｢時計大手｣エプソン､オリエント統合の意味". Toyo Keizai Inc. September 19, 2016. Archived from the original on June 5, 2025.

watchesbysjx.com (Global: low place; English: low place)

"Seiko Unveils One-Off Cosmic Watch for Shohei Ohtani". SJX Watches. Archived from the original on July 6, 2026. Retrieved July 6, 2026.

watchesonnet.com (Global: low place; English: low place)

"Seiko is the Official Timekeeper of the Gran Turismo Racing Series". Luxury Watches That Impress Review Blog. February 1, 2012. Retrieved August 3, 2019.

watchpro.com (Global: low place; English: low place)

usa.watchpro.com

"Novak Djokovic Signs with Seiko". Retrieved August 7, 2023.

watchtime.com (Global: low place; English: low place)

"The History of Seiko Through 12 Milestone Seiko Watches". EBNER PUBLISHING INTERNATIONAL, INC. January 20, 2021. Archived from the original on November 25, 2021.
"Seiko: A Chronograph Chronology". Watch Time. May 10, 2024. Archived from the original on April 25, 2025. Retrieved April 25, 2025.

web.archive.org (Global: 1^st place; English: 1^st place)

"和光ビル（旧服部時計店本社ビル）". Sanko Estate Co., Ltd. Archived from the original on January 13, 2023.
"The History of Seiko Through 12 Milestone Seiko Watches". EBNER PUBLISHING INTERNATIONAL, INC. January 20, 2021. Archived from the original on November 25, 2021.
"Our Heritage". Seiko Watch Corporation. Archived from the original on April 3, 2022.
"Seiko sets its sights on high-quality mechanical market". Financial Times. September 28, 2015. Archived from the original on October 1, 2019. Retrieved January 18, 2022.
"Go Behind the Scenes of One of the Most Impressive Watchmaking Operations in the World". Gear Patrol, LLC. February 8, 2018. Archived from the original on December 3, 2022. Retrieved February 3, 2023.
"Seiko Quality" (in Japanese). Seiko Group Corporation. Archived from the original on February 3, 2023. Retrieved February 3, 2023.
文字板に込めた、それぞれの製造地への想い (in Japanese). Jewelry Paris Inc. February 12, 2021. Archived from the original on February 24, 2021. Retrieved February 3, 2023.
"Grand Seiko Manufacture Tour Part 2: The Seiko Museum in Ginza". Time and Tide Watches. July 23, 2023. Archived from the original on August 13, 2023.
"Ginza Limited Edition". Seiko. Archived from the original on February 14, 2025.
セイコー/19　自社製時計の名称をセイコーに統一＝広岩近広 (in Japanese). Mainichi Shimbun. Archived from the original on June 21, 2024.
セイコー腕時計の歴史 (in Japanese). Seiko Watch Corporation. Archived from the original on December 4, 2022. Retrieved February 3, 2023.
"Technical Challenges at the Observatory Chronometer Competition in Switzerland". Seiko Holdings Corporation. Archived from the original on April 3, 2022.
Thompson, Joe (October 10, 2017). "Four Revolutions: Part 1: A Concise History Of The Quartz Revolution". Hodinkee. Archived from the original on May 30, 2019.
"The Quartz Crisis and Recovery of Swiss Watches". The Seiko Museum. Archived from the original on March 6, 2019.
"Seiko: A Chronograph Chronology". Watch Time. May 10, 2024. Archived from the original on April 25, 2025. Retrieved April 25, 2025.
"Grand Seiko Achieves World-Record Mechanical Accuracy In The SLGB001 And SLGB003 – Plus Micro-Adjust Is Now Here". Hodinkee. March 31, 2025. Archived from the original on April 3, 2025. Retrieved April 3, 2025.
"Grand Seiko Just Revolutionized Watch Accuracy. Again". Gear Patrol. March 31, 2025. Archived from the original on April 3, 2025. Retrieved April 3, 2025.
"セイコーエプソン・事業多角化の起源" (PDF). The Research Institute for Innovation Management, Hosei University. Archived from the original (PDF) on April 16, 2024.
“東洋の時計王”服部金太郎が築いた時計王国「セイコー」の基盤 (in Japanese). Bestnavi.jp company. Archived from the original on August 17, 2025.
"History－Details". Seiko. Archived from the original on March 26, 2025.
服部時計店のウオッチ製造部門『第二精工舎』誕生 (in Japanese). Bestnavi.jp company. Archived from the original on July 17, 2025.
セイコーエプソンの歴史 (in Japanese). Shashi.com. Archived from the original on May 13, 2025.
会社沿革 (in Japanese). Seiko Instruments. Archived from the original on April 27, 2025.
事業拠点 (in Japanese). Seiko Watch Corporation. Archived from the original on April 1, 2025.
"｢時計大手｣エプソン､オリエント統合の意味". Toyo Keizai Inc. September 19, 2016. Archived from the original on June 5, 2025.
関係会社2社「二戸時計工業株式会社」、「遠野精器株式会社」社名変更のお知らせ (in Japanese). Morioka Seiko Instruments. Archived from the original on November 14, 2025.
"銀座のセイコー新社屋を訪問--エントランスに世界時計「Seiko Space Eye」". CNET Japan. July 9, 2016. Archived from the original on August 12, 2024.
"Affiliated Companies". Seiko Group Corporation. Archived from the original on November 14, 2025.
国内腕時計３工場で、使用電力を100％再生可能エネルギー化 (in Japanese). Seiko. Archived from the original on July 22, 2025.
"The Shinshu Watch Studio". Seiko. Archived from the original on June 17, 2025.
"The Grand Seiko Studio Shizukuishi". Seiko. Archived from the original on June 17, 2025.
"Masterpiece Collection". Seiko. Archived from the original on May 15, 2025.
"Grand Seiko Manufacture Tour Part 4: Chatting with the man behind the Kodo at Atelier Ginza". Time and Tide Watches. August 20, 2023. Archived from the original on June 24, 2024.
"セイコー創業の地、東京・銀座に時計工房「アトリエ銀座」が誕生". Web Chronos. Archived from the original on January 15, 2025.
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＜クレドール＞スケルトンモデルの誕生25周年を記念して、ハンドワークの粋を極めた「Art Piece Collection」の最高峰モデルが登場 (in Japanese). Seiko. June 23, 2021. Archived from the original on November 16, 2023. Retrieved April 20, 2025.
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webchronos.net (Global: low place; English: low place)

"セイコー創業の地、東京・銀座に時計工房「アトリエ銀座」が誕生". Web Chronos. Archived from the original on January 15, 2025.
クレドール／マイクロアーティスト工房編 (in Japanese). web Chronos. June 21, 2024. Archived from the original on November 14, 2024. Retrieved April 20, 2025.
グランドセイコーとクレドールって違うの? モデルから見るそれぞれの特徴 (in Japanese). web Chronos. May 8, 2024. Archived from the original on October 8, 2024. Retrieved April 20, 2025.
グランドセイコー・ヨーロッパ社長が考える、欧州展開のポテンシャル (in Japanese). web Chronos. August 23, 2022. Archived from the original on December 12, 2024. Retrieved April 20, 2025.
セイコークレドール「Cal.68系」。未来に残したい時計遺産【傑作ムーブメント列伝】 (in Japanese). webChronos. December 8, 2024. Archived from the original on January 17, 2025. Retrieved April 26, 2025.
クレドールゴールドフェザーその薄さ、羽根の如く。～ (in Japanese). webChronos. June 6, 2023. Archived from the original on November 11, 2024. Retrieved April 26, 2025.
【2022年新作】世界初の機構を備えたグランドセイコーの傑作「Kodo（鼓動）コンスタントフォース・トゥールビヨン」誕生 (in Japanese). webChronos. April 8, 2022. Archived from the original on November 7, 2024. Retrieved April 21, 2025.

worldathletics.org (Global: 337^th place; English: 332^nd place)

"Seiko renews its partnership with the IAAF for ten more years". Yokohama: World Athletics. May 10, 2019. Retrieved July 9, 2019.

yankodesign.com (Global: low place; English: low place)

Gaurav Sood (April 12, 2024). "Designer introduces iconic Seiko H-Timetron watch in 3D to the Gen-Z". Yanko Design. Retrieved July 13, 2025.

Seiko (English Wikipedia)

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