Name: Seikosha (Seiko) Japanese Military Pocketwatch
Brand: Seiko

Thumbnail Seikosha (Seiko) Japanese Military Pocketwatch 1

Thumbnail Seikosha (Seiko) Japanese Military Pocketwatch 2

Thumbnail Seikosha (Seiko) Japanese Military Pocketwatch 3

Thumbnail Seikosha (Seiko) Japanese Military Pocketwatch 4

Thumbnail Seikosha (Seiko) Japanese Military Pocketwatch 5

Thumbnail Seikosha (Seiko) Japanese Military Pocketwatch 6

Model:	Seiko	Last Scraped:	Feb. 2, 2026, 9:17 p.m.
Username:	brodog49	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

As discussed in the Japanese Watch Discussion Forum...this is a Seiko Military pocket watch circa 1940's. This is a Seikosha Military watch /Flight clock, does not appear to have original hands, likely mounted to the dashboard in cockpit of Japanese planes, possibly Kamikaze piloted. Type 100, screw on front & back, possibly radium lume.

This watch runs great - but has an issue with the canon pinion that will not allow me to set the time without popping off the hands (perhaps because this is not the correct handset). I imagine the part is unobtanium or would have to be custom fabricated or find a set of the right hands from a parts watch.

All of that said, this is a special watch with historical significance - hopefully SCWF is the place where it can find a forever home.

PayPal F&F only – price includes shipping in the lower 48 states – please let me know if you have any questions before purchasing. PM with interest. Thank you for looking!

JR

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	Established:	1881
	Website:	http://seikousa.com/index.php
	Country of Origin:	Japan

The company was founded in 1881, when Kintarō Hattori opened a watch and jewelry shop called "K. Hattori" (服部時計店 Hattori Tokeiten?) in the Ginza area of Tokyo, Japan. Eleven years later, in 1892, he began to produce clocks under the name Seikosha (精工舎 Seikōsha?), meaning roughly "House of Exquisite Workmanship". According to Seiko's official company history, titled "A Journey In Time: The Remarkable Story of Seiko" (2003), Seiko is a Japanese word meaning "exquisite" or "success" ("exquisite" is usually written 精巧 from Chinese jīngqiǎo, while the meaning "success" is usually written 成功 from Chinese chénggōng).

Seiko is perhaps best known for its wristwatches, all of which were at one time produced entirely in-house. This includes not only major items such as microgears, motors, hands, crystal oscillators, batteries, sensors, LCDs but also minor items such as the oils used in lubricating the watches and the luminous compounds used on the hands and the dials.

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