Hours register on Ref. 3590.50 keeps coming off

Posts

14

Likes

0

ttownthomas

·Jul 27, 2025

Hours register on my Ref. 3590.50 has come off 3 times. The counterperson at my local watchmaker (Omega AD) did not relay to the watchmaker that it was a 3 time repeat repair. They said "if it happens again" they will need to send it to Omega. That sounds like an expensive proposition. What is likely happening here?

 

Posts

14

Likes

0

ttownthomas

·Jul 27, 2025

To clarify im talking about the hand coming off the shaft. Usually due to resetting the chronograph

 

Posts

1,305

Likes

2,486

josiahg52

·Jul 27, 2025

Hand needs to be replaced or a talented and careful watchmaker can crimp the hand hole to tighten the fit to the pinion. The latter typically risks chipping the paint.

 

Posts

17,463

Likes

36,601

JimInOz

·Jul 28, 2025·Melbourne Australia

josiahg52

Hand needs to be replaced or a talented and careful watchmaker can crimp the hand hole to tighten the fit to the pinion. The latter typically risks chipping the paint.

Done carefully the paint should be OK. I've saved a few by putting the pipe of the hand into a suitably sized lathe collet and compressing the pipe slightly. The collet provides 3 radial compression areas so is much better than squeezing with pliers.

 

Posts

1,305

Likes

2,486

josiahg52

·Jul 28, 2025

JimInOz

Done carefully the paint should be OK. I've saved a few by putting the pipe of the hand into a suitably sized lathe collet and compressing the pipe slightly. The collet provides 3 radial compression areas so is much better than squeezing with pliers.

Agree. I've done the same to crimp a Miyota 9015 seconds hand.

 

Posts

29,106

Likes

75,220

Archer

·Jul 28, 2025·Omega Qualified Watchmaker

The hour recording hand should be replaced. Crimping this particular one will be difficult for a couple of reasons. The pipe section on this is much shorter than on other hands, and is also has a much thicker wall. So there's not much to grip onto, and the wall thickness is heavy, so it requires a lot of pressure that can easily go too far.

Not saying it can't be done, but replacement is the usual solution.

 

Posts

867

Likes

889

502 to right

·Jul 28, 2025

I wouldn't even consider trying to crimp the hand. It needs to be replaced. Period.

 

Posts

14

Likes

0

ttownthomas

·Jul 29, 2025

Replacing the hand seems like it could be a job for a competent watchmaker and not need a trim to Omega?

 

Posts

17,463

Likes

36,601

JimInOz

·Jul 30, 2025·Melbourne Australia

ttownthomas

Replacing the hand seems like it could be a job for a competent watchmaker and not need a trim to Omega?

Yes, if you have a replacement hand for the watchmaker to use, unless he is an Omega certified watchmaker, in that case he may be able to order the hand for you.