Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 1

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 2

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 3

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 4

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 5

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 6

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 7

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 8

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 9

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 10

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 11

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 12

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 13

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 14

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 15

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 16

Thumbnail [WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455 17

Model:	Seiko Brightz	Last Scraped:	June 22, 2025, 9:47 p.m.
Username:	client42	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Timestamp: https://imgur.com/a/GT0BRuh For sale is a Seiko Brightz SDGM003 Grand Cocktail Time Automatic Watch Movement: 6R15 Mechanical (Automatic) Condition: Used Strap: Original bracelet sized to approximately 18cm with 3 extra links Box: Original Warranty card: Stamped 2016-10-02 Manual: Yes Wear present on crystal. Approximate measurements: Case diameter: 40mm (excluding crown) Lug width: 20mm Lug to lug: 48mm Thickness: 12mm Asking $455 USD including tracked shipping to US. UPS Expedited/Express, Canadian, and global shipping available at an additional cost. Payment via Wise, crypto, wire, e-Transfer (for Canadians), or PayPal Invoice (+3.9%). No trades and please comment before messaging.

First Posted:	8 months ago	# of Reposts:	16
Starting Price:	$475	Price Change:	4% lower

Hide Reposts (14)

First Posted	8 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	8 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	7 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	7 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	6 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	6 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	5 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	5 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	5 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Repost	4 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $475	$475
Price Change	4 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455	$455
Repost	4 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455	$455
Repost	3 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455	$455
Repost	3 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455	$455
Repost	3 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455	$455
Repost	2 months ago	[WTS] Seiko Brightz SDGM003 6R15 Grand Cocktail Time JDM Automatic Watch - $455	$455

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Highest:	$1,200	Lowest:	$35
Median:	$650.00	Std. Dev:	±$279.99

Estimated Private Party Value $300 — $799


	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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