Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 1

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 2

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 3

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 4

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 5

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 6

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 7

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 8

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 9

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 10

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 11

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 12

Thumbnail [WTS] Seiko 6139-7010 SpeedTimer Automatic JDM Chronograph. Vintage March 1970 “Proof-Proof” Running Smoothly 13

Model:	Seiko 6139	Last Scraped:	May 5, 2024, 6:48 p.m.
Username:	burtinge	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Greetings r/Watchexchange: Up for sale is my 6139-7010 Speedtimer. Thinning the herd. This is a “Proof-Proof” model in good condition. Hands, crystal, chapter ring, bezel, sharp black dial with Arabic numerals -- all are original. Red minute hand. Original chrono pushers work and reset to zero. Solid 6139A movement is keeping time with good amplitude. Kanji/English day/date changes with push-button crown. Non-original Bambi bracelet. Sits comfortably on the wrist and is a strap monster. This JDM reference was manufactured in March 1970. Lume is still there after 54 years; see pic. Diameter- 41mm / Lugs- 19mm. Purchased directly from Japan. Timestamp: [https://imgur.com/a/x8mtwYk](https://imgur.com/a/x8mtwYk) Album: [https://imgur.com/a/BJGYtoP](https://imgur.com/a/BJGYtoP) Album: [https://imgur.com/a/UtIP9qm](https://imgur.com/a/UtIP9qm) Video: [Video](https://imgur.com/a/IpHbhSn) Asking $445 shipped CONUS. PayPal F&F. Add 4% for G&S. International buyers add $35 for shipping. Local San Francisco Bay Area pickup is ok. More pics, video available. Happy to answer questions. Please comment first and then PM. Thanks!

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Highest:	$1,200	Lowest:	$5
Median:	$499.00	Std. Dev:	±$234.86

Estimated Private Party Value $399 — $699


	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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