Seiko 6139B Caliber Vintage Watch Movement

Seiko Caliber 6139B

Seiko 6139B Caliber Vintage Watch Movement

Brand Seiko
Caliber Number 6139B
Movement Type Automatic
Jewels 17
Vibrations Per Hour
21,600 bph
Diameter 27mm
Thickness 7.1mm
Shock System Diashock
Crown Location 3:00
Functions Hours, minutes, central chronograph seconds, 30 minute counter, day, date
Country of Manufacture Japan
Known Models 6139-6005 (add more in the comments below)

The crown adjusts the day/day by pushing in (lightly for day, harder for date). The crown also controls an internal rotating bezel. 30 minute subdial is at 6:00 and there is a central chronograph seconds hand.

There are different variations of this movement, including Seiko caliber 6139A, 6138A, and 6138B.

From a post on watchuseek by sempervivens:

…so Seiko cal. 6139A was produced from 1969 until 1971 and the switch from Seiko cal. 6139A to Seiko cal. 6139B took place in 1971, which lasted until 1978.

Concerning Seiko cal. 6138, everything probably happened one year later :
production of 6138A started in 1970, the switch to 6138B took place in 1972, and production lasted until 1979.

Seiko 6139B Caliber Vintage Watch Movement

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Maxime
Maxime
2 years ago

hi, you guys don’t happen to rebuild those movement for selling right?

Maxime
Maxime
2 years ago
Reply to  Caliber Corner

ok perfect thanks for the response! 🙂

Derek Roth
Derek Roth
1 year ago
Reply to  Maxime

I do

Nick
Nick
2 years ago

I have a 6139 A missing one of the hammer springs! what ithe pisition of 586611 and odf the 575610?

Derek Roth
Derek Roth
1 year ago
Reply to  Nick

I can source and replace those for you

Nick Miniov
Nick Miniov
1 year ago
Reply to  Derek Roth

Hi, I got the parts, how much would be the cost of replacement and maybe cleaning?

Nick
Nick
2 years ago

I have a 6139 A missing one of the hammer springs! where is the position of 586611 near 2 pm or near 4 pm?….to buy one of the hammer spring and I need help!

dave
dave
1 year ago

I have owned a 6139B since 1972. I wore it for 12 years and had it serviced once. I stopped wearing it in 1984 and put it back in the box. About a year ago I pulled it out of the box and took it in to get the pushers unstuck. The watch gains about 3 to 5 seconds a day after not being used at all for 35 years. Amazing little machine.

Pip
Pip
1 year ago
Reply to  dave

That’s a cool story. Why were the pushers stuck?

dave
dave
1 year ago
Reply to  Pip

I imagine from non use after all those years. The watch repair shop had to make new little gaskets to replace the dried out gaskets. He showed me the old gaskets and they looked very tiny O rings. The watch works like the day I brought it home. Though it doesn’t look as good as new. The glass crystal has scratches.

Ramón
Ramón
6 months ago
Reply to  dave

Tenias que llevarlo a un buen relojero a hacerle una buena revisión. Lo merece despues de tanto tiempo. Saludos de Ribeira

William White
William White
1 year ago

I have a 6138B that needs a plunger and spring, can you provide these and if so, at what cost?

Ramón
Ramón
6 months ago
Reply to  William White

Los muelles los tengo, el embolo a cual te refieres.

Justyn
Justyn
7 months ago

Hello

Hoping someone can help with a quick question. Did 6139A come with day ring or just date. I have a 6139-6012 (1972) which I assume came out with 6139B but the movement is gone. I want to get restored but only have a 6139A movement and it has no day ring. Can day ring be added?

Thanks!!

ck.chan
ck.chan
1 month ago

Hi, could anyone give me advice what is the difference between Seiko movement 6139-6000 and 6139A

Eric
Eric
1 month ago
Reply to  ck.chan

6139 is the caliber number. 6000 is your watch style number. 6139 and 6139A are the same. The A is just a revision number, if there were any revisions it would go to 6139B. Check other Seiko movements on this site, they talk about it more on other pages.

ck.chan
ck.chan
1 month ago
Reply to  Eric

Thank you Eric for the information. By the way, the winding stem of my 6139 chrono movement is broken, I cannot find its winding stem but I can find a stem from seiko 6309. do you know if winding stems of these 2 movements are interchangeable ?

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