Hi everyone,
I have been lurking for months now and learned a lot, this forum is invaluable, so a big thanks to all the contributors.
I am posting some pictures of my 101.010-63 which I have had serviced last November. When I got it back the chrono didn't reset properly most of the time: The minute register hand swung back too far, it reset to the 26 min marker approximately. So my watchmaker worked at it again. Now that I got it back the minute register chrono hand gets frequently stuck at various points, mostly at the 11 min mark (it starts moving to get on the next min mark but drops back again).
Can anybody see from the photos any evident problem, especially in the area I have marked? (I have taken the photos with the chronograph disengaged, I probably should have had it engaged, sorry.) Could the small spring there be the problem? How does it look in general, for a serviced movement?

 

It's like CSI Omega.... enhance that area!

One of the resident watchmakers will be able to give an opinion shortly. @Archer 's your man when he has a moment to spare.

 

Hope you figure it out, that’s a great watch.

 

It’s a beauty! Hope you get the issue sorted out soon

 

Hopefully it’s nothing too serious! Beautiful movement and piece

 

Here is a photo of what this area should look like. Note that the "beak" of the jumper is fully engaged in the teeth of the minute recording wheel at the red arrow. Pay attention to the shape, thickness, and positioning of the very fine spring for this jumper:



On your watch, the jumper is not even touching the teeth of the minute counting wheel. In addition the spring does not appear to be a genuine spring, and it's certainly not positioned properly. If this is how your watchmaker left it, you may want to consider finding someone who has more experience with 321's.

Cheers, Al

 

Thanks to all responders and especially Archer. I thought there was something wrong there ...

 

Just needs a bent paperclip in there....

 

So obvious once you pointed it out I learnt something today !

 

Every time @Archer responds to a post, I learn something! If only he would let people put him on retainer...