Thumbnail [WTS] Seiko Chronograph 'Slide Rule' (Ref. 6138-7000) 1

Thumbnail [WTS] Seiko Chronograph 'Slide Rule' (Ref. 6138-7000) 2

Model:	Seiko 6138	Last Scraped:	Dec. 4, 2024, 6:17 a.m.
Username:	keepiece	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

The Seiko 6138-7000 was designed for those who wanted a slide rule on their wrist for conducting mathematical calculations. Its “Calculator” denomination refers to the slide rule double bezel that can be used to complete any number of mathematical equations on the fly. Brand: Seiko Reference: 6138-7000 Movement: 6138 Case: Stainless steel Size: 44mm Lug to lug: 46.5mm Year: 1971 Strap: Seiko bracelet Box/papers: No Location: Los Angeles Price: $2,999 or best offer CA residents may be subject to tax CONDITION & SERVICING \-The beautiful matte dial is in excellent condition. \-The unpolished case is in very good condition not showing any notable damage. \-Serial and reference numbers are both visible. \-Hands and markers are in good condition, both showing matching lume patina. \-Service history is unknown. TIMESTAMP/PICTURES: [https://imgur.com/a/eGJWluo](https://imgur.com/a/eGJWluo)

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The price of this watch is an outlier for this particular model and not included in the distribution. It may be miscategorized, incorrectly priced, or extremely unique.

Highest:	$1,150	Lowest:	$250
Median:	$500.00	Std. Dev:	±$206.17

Estimated Private Party Value $302 — $658


	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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