Issue with a 7753 PAM 196

[Chicken Manny]

Here is a question for the movement guru's in the house.

I wore my recently received used ETA 7753 - 196 for the first time today and everything seemed fine until I looked down a couple hours later and it had stopped. The chrono second hand was just short of the 12 marker. I thought it might have run out of reserve so I wound it up all the way and it fired back up no problem. Then a half hour later I look down and it is stopped with the chrono second hand stopped just before the 12 marker. I have watched it a few times now and it seems to run for about 5-10 minutes then freeze up just shy of the 12 marker. If you stop the chrono (which is easy because it isn't moving) and reset the chrono, then start it again, it runs like nothing happened ... for 5-10 minutes.

I haven't seen this happen to any of my chronos before, any ideas?

Thank you for your time and assistance!

Cheers,

CM

[Guest carlsbadrolex]

Hope its not contagious... My 188 with 7753 is running within 2sec per 24 hour.

[HauteHippie]

Here is a question for the movement guru's in the house.

I wore my recently received used ETA 7753 - 196 for the first time today and everything seemed fine until I looked down a couple hours later and it had stopped. The chrono second hand was just short of the 12 marker. I thought it might have run out of reserve so I wound it up all the way and it fired back up no problem. Then a half hour later I look down and it is stopped with the chrono second hand stopped just before the 12 marker. I have watched it a few times now and it seems to run for about 5-10 minutes then freeze up just shy of the 12 marker. If you stop the chrono (which is easy because it isn't moving) and reset the chrono, then start it again, it runs like nothing happened ... for 5-10 minutes.

I haven't seen this happen to any of my chronos before, any ideas?

Thank you for your time and assistance!

Cheers,

CM

This is a job for none other than The Zigmeister.

[Watchmeister]

I had the same issue where the whole thing stops when the chrono seconds approaches 12. Send it to Ziggy he repaired mine.

[RWG Technical]

With the chrono running, and the seconds hand just shy of the 12 marker, the seconds gear is just starting to engage the 30 mintue counter gears.

If it stops at this point, the reason is a problem with the 30 minute gears, probably not the two on the back of the movement, but the 3 under the dial.

Assembling the 7753 dial side, is quite tedious and difficult, I have seen a few that had this identical problem, and the reason was that someone had upgraded the watch with a new datewheel, but didn't realize this is not a 7750 and the dial side parts and assembly is quite involved and tricky. When they assembled it, they got the transfer gears jammed up.

If this watch had any work done on the dial side, for example a datewheel upgrade, I would say this is your problem.

There were also a number of these that got broken by the owners or the watchsmith's (?) and the post on the 30 minute counter where the hand is installed was snapped of. I repaired a few of these, since you can't get 7753 parts from ETA. Maybe yours is one with this problem.

RG

[TK471]

Zig -- my snapped off chrono hand that you repaired is working like a charm. Thanks for the hard work.

[RWG Technical]

Zig -- my snapped off chrono hand that you repaired is working like a charm. Thanks for the hard work.

Great to hear it's still working fine.

RG

[Chicken Manny]

With the chrono running, and the seconds hand just shy of the 12 marker, the seconds gear is just starting to engage the 30 mintue counter gears.

If it stops at this point, the reason is a problem with the 30 minute gears, probably not the two on the back of the movement, but the 3 under the dial.

Assembling the 7753 dial side, is quite tedious and difficult, I have seen a few that had this identical problem, and the reason was that someone had upgraded the watch with a new datewheel, but didn't realize this is not a 7750 and the dial side parts and assembly is quite involved and tricky. When they assembled it, they got the transfer gears jammed up.

If this watch had any work done on the dial side, for example a datewheel upgrade, I would say this is your problem.

There were also a number of these that got broken by the owners or the watchsmith's (?) and the post on the 30 minute counter where the hand is installed was snapped of. I repaired a few of these, since you can't get 7753 parts from ETA. Maybe yours is one with this problem.

RG

Thank you The Zigmeister! As usual your expertise comes to the rescue, and during your vacation no less. I bought two of these watches, one complete and one in kit form. This watch was the complete one and did have a datewheel upgrade that I should have mentioned. When I bought it I assumed you had done the DW upgrade but looking back it was the lume that was done by you (sounds like you had the dial only). I won't mention the who did the DW but that has to be it. The seller has been great and is standing behind the watch so I will see what we can figure out.

Thanks again for you help!

[RWG Technical]

Great news, hopefully it will work out for you.

Back to my vacation...

RG