Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 1

Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 2

Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 3

Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 4

Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 5

Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 6

Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 7

Thumbnail [WTS] Seiko Sumo SBCD003 (repost/reduce) 8

Model:	Seiko Sumo	Last Scraped:	June 19, 2025, 2:17 a.m.
Username:	djbread	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Here we have a Gen 1 Seiko Sumo SBDC003 “Blumo” in nice used condition. Serial dates it to June 2013 and it’s running well. -Bezel: turns smoothly with a pleasing resistance, and is in good shape other than some scratches and typical paint wear around the highest edge (inside from the lovely fat numerals) -Crystal: good shape, a couple small flea bites if the light hits it just so -Dial/hands: great shape, classic cursive “Automatic” text and no prospex “X” -Case: has some use but nothing major, lines are sharp, signed crown screws in smoothly -Bracelet: typical use, sized to my 7.25” wrist and includes 1 extra link. Includes Crafter Blue fitted rubber strap in barely used condition, sorry no box or papers. Looking for $400 including insured US shipping, open to offers but probably no trades

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Highest:	$700	Lowest:	$235
Median:	$450.00	Std. Dev:	±$111.53

Estimated Private Party Value $400 — $508


	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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