I can't believe this...

[yodap]

Hi all,

I've got a bentley 6.75 with the mentioned movement. It ran fine for 3/4 year, and then started to stop during nights with the small seconds at 05 (exactly). I took it for a "full service"** and it ran much better, with 36hr power reserve (it had about 18-20 when it was new). Now I had two nights with the same issue as before (stops during night exactly at 05)... What the heck is happening??? I'd appreciate every piece of advise!!!

**= I'm not sure if he did a full service, as the chrono second hand remained EXACTLY at it's resetted position (leans a very bit left from the breitling anchor). I also had a problem with starting the chronograph, and then the whole movt would stop (happened about 1/50 times when starting the chrono). This problem still exists sometimes as well.

My final question: Is the secs @ 3 + big date mod just a plate on the top of the A7750? If so I have a spare A7750 so my watchmaker could do the swap...

Thanks for your answers!

J.

[Rolexman]

Look at The Zigmeister's section he did a review of the sec @3 movement. As you mentioned the chrono second hand is still in the same position I would suspect the movement didn't get a full overhaul. For that the hands would have been removed en reinstalled..... It doesn't make sense to reinstall the chrono second hand crooked ergo no full service (I like those academic words lol)

[yodap]

Thanks, I posted my question there... I hope my watchmaker will be able to make one working movement from the current two...

Greetz.