Thumbnail [WTS] Seiko 7A28-7079 ‘Grey Ghost’ from May 1983 | Serviced, reduced 1

Thumbnail [WTS] Seiko 7A28-7079 ‘Grey Ghost’ from May 1983 | Serviced, reduced 2

Thumbnail [WTS] Seiko 7A28-7079 ‘Grey Ghost’ from May 1983 | Serviced, reduced 3

Thumbnail [WTS] Seiko 7A28-7079 ‘Grey Ghost’ from May 1983 | Serviced, reduced 4

Thumbnail [WTS] Seiko 7A28-7079 ‘Grey Ghost’ from May 1983 | Serviced, reduced 5

Model:	Seiko 7A28-7079	Last Scraped:	Jan. 17, 2024, 8:47 p.m.
Username:	hnhhuyhnh	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

For sale is a very nice example of a 7A28-7079, the world’s first analog quartz chronograph movement. The watch features the 7A28 movement, a 15 jewels, fully serviceable, quartz chronograph movement with an all metal construction. This grey ghost variant is more uncommon amongst the 7A28 models with the integrated bracelet case style. Bracelet is the OEM bracelet. Condition: great condition for vintage watch. Scratches on the case, bracelet, and clasp. Please inspect the photos. Very nice and clean dial. Some lume damage as pictured. I chose not to have the lume redone Dimensions: 40 case diameter, 10mm thickness Functions: sub seconds, chronograph, split seconds timer, 1/10th of a second, hacking seconds Movement: 7A28 quartz, 15 jewels. Movement serviced July 2023. Price: $420 plus shipping to CONUS. PayPal FF or Zelle ( add 4% for PayPal G&S). Thanks for looking!

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Highest:	$500	Lowest:	$350
Median:	$422.50	Std. Dev:	±$44.34

Estimated Private Party Value $415 — $490


	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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