6139-6032 'Coke' ST 5 October 1972
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- MODEL: 6139 JDM 'Coke' Speed Timer 5 Sports Chronograph From October 1972
- REFERENCE: 6139-6032
- DIAL: Original Black JAPAN 6139 -6050T
- CASE MATERIAL: Stainless Steel
- CASE DIMENSIONS: 41.5x46.7x14mm Height,
- LUG WIDTH: 19mm
- CRYSTAL: Hardlex Mineral Crystal
- CASE BACK: Screw-in Stainless Steel
- MOVEMENT: Seiko Automatic Cal. 6138B, 21 Jewels
- Serial Number: 206237
- Service History: Unknown, ±20s/day
- Bracelet: High quality aftermarket Seiko 5 Sports with signed clasp
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Seiko Vintage 6139-6032 Speed Timer 5 Sports Chronograph from October 1972 - All original except for crystal and bracelet. These watches are often referred to as the 6139 'Coke' or 'Coke Pogue' and were mainly distributed in Japan so referred to as a JDM variant.
The 6139 was introduced in early 1969 by Seiko's Suwa factory and despite much debate it's now widely accepted that watches housing the 6139A movement were the first automatic chronographs brought to market. It's getting harder to find good examples of these slightly later and higher grade 21 Jewel movement watches.
The movement is clean, free of any deterioration and keeping great vintage time. Automatic chronograph with a single thirty minute register at 6 o’clock and internal rotating bezel with tachymeter scale, operated via the crown. Chrono functions all working as they should, buttons click nice and firmly and it resets perfectly to zero. Day/Date functions working correctly by pushing in the crown lightly for day and more firmly for date. Cosmetically in excellent condition. Dial near perfect with original lume in great condition.
Movement: Original, SEIKO Suwa 21 J 6139B - Great condition. Day/date turn over at midnight & quickset works as it should.
Service history unknown but movement is clean and running strong. Pusher, crown and caseback gaskets replaced and lubricated but not guaranteed water resistant.
Dial: Black, excellent condition, lume on indices & hands original and very good.
Day/Date at 3 o'clock Day in English and Kanji, features the classic Sunday in red
Glass: Unmarked, replaced (original available on request)
Case: Original, unpolished stainless steel, minor age related wear. Caseback is in great shape with serial number and reference numbers still clearly legible
Crown: Original, well fitted
A word of caution: I strongly advise you to do plenty of research before committing your hard earned money to buying a 6139 or any other vintage Seiko for that matter. It may come as a surprise considering Seiko are not considered 'high end' that many parts on watches you will see for sale are aftermarket (in other words fake) and many pieces are what's known in the trade as 'Frankens' - watches cobbled together from various sources and probably also sporting lots of fake parts too - It used to be quite easy to spot these watches but fake parts are getting harder and harder to tell from the real thing, so please be very wary. Something I would also advise is to 'buy the seller' and hopefully as you are here it means you're considering doing just that. I have spent many years building my reputation and doing the research so you don't have to. Feel free to contact me with questions and I am always more than happy to provide referrals.
The 6139 was introduced in early 1969 by Seiko's Suwa factory and despite much debate it's now widely accepted that watches housing the 6139A movement were the first automatic chronographs brought to market. It's getting harder to find good examples of these slightly later and higher grade 21 Jewel movement watches.
The movement is clean, free of any deterioration and keeping great vintage time. Automatic chronograph with a single thirty minute register at 6 o’clock and internal rotating bezel with tachymeter scale, operated via the crown. Chrono functions all working as they should, buttons click nice and firmly and it resets perfectly to zero. Day/Date functions working correctly by pushing in the crown lightly for day and more firmly for date. Cosmetically in excellent condition. Dial near perfect with original lume in great condition.
Movement: Original, SEIKO Suwa 21 J 6139B - Great condition. Day/date turn over at midnight & quickset works as it should.
Service history unknown but movement is clean and running strong. Pusher, crown and caseback gaskets replaced and lubricated but not guaranteed water resistant.
Dial: Black, excellent condition, lume on indices & hands original and very good.
Day/Date at 3 o'clock Day in English and Kanji, features the classic Sunday in red
Glass: Unmarked, replaced (original available on request)
Case: Original, unpolished stainless steel, minor age related wear. Caseback is in great shape with serial number and reference numbers still clearly legible
Crown: Original, well fitted
A word of caution: I strongly advise you to do plenty of research before committing your hard earned money to buying a 6139 or any other vintage Seiko for that matter. It may come as a surprise considering Seiko are not considered 'high end' that many parts on watches you will see for sale are aftermarket (in other words fake) and many pieces are what's known in the trade as 'Frankens' - watches cobbled together from various sources and probably also sporting lots of fake parts too - It used to be quite easy to spot these watches but fake parts are getting harder and harder to tell from the real thing, so please be very wary. Something I would also advise is to 'buy the seller' and hopefully as you are here it means you're considering doing just that. I have spent many years building my reputation and doing the research so you don't have to. Feel free to contact me with questions and I am always more than happy to provide referrals.
