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Minute hand problems....


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For some reason I’m not processing this well. It’s been a long day. Correct me if I’m wrong. The canon pinion should make one revolution per minute, correct?


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The cannon pinion is holding the hour hand

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30 minutes ago, jdrichard said:


The cannon pinion is holding the hour hand

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See below... I had to think about this a while - I always get it mixed up, but I still say canon pinion holds minute hand :)

HANDS-WORK.jpg.7286a7d037b5c87dfbf5904f82ce406f.jpg

Edited by sstakoff
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32 minutes ago, sstakoff said:

Ha! The image I just posted shows the seconds hand attached to the third wheel! That's not correct - seconds are attached to the fourth wheel!!!

Yes and no.....

In a sub-seconds or a direct driven centre seconds configuration the seconds hand is indeed mounted on the fourth wheel. But in an indirect driven centre seconds configuration (which is what your illustration appears to be) the seconds hand is mounted on its own pinion which is usually driven by the third wheel.

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This is a sub second. And to update, after staying up till about 1 o’clock this morning working on it, the watch is running better but still not perfect. Still the occasional stop but so far this morning it’s been running since 6:00am. Still not sure why.


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See below... I had to think about this a while - I always get it mixed up, but I still say canon pinion holds minute hand [emoji4]
HANDS-WORK.jpg.7286a7d037b5c87dfbf5904f82ce406f.jpg

Crap, you are correct. It's the gear over the pinion that holds the hour hand...I should know this:)


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    • Hello and welcome from Leeds. 
    • Unfortunately I'm not that lucky. I started on the train side and after I noticed the binding I pulled everything out except the driving wheel to rule everything else out. It still binds. I'm going to double check that the pinion is fully seated on the staff first, then if no joy I'll push the bridge jewel up a fraction of a mm. Fingers crossed!
    • Happy to have helped, great way to start the day with a win! 🥳
    • Thank you for the advise!! It worked. The setting screw was a lock/unlock to remove the rotor. 
    • I have that French tech sheet too, it is a little different than the English one (eg, it doesn't have the auto works diagram). BTW, it looks like you are looking up the case number in the 1979 ABC supplement. The 1974 ABC catalog does have the 3093 case. As you determined it takes the 1222-5 crystal.  When I serviced my President 'A' (which also takes that crystal), I was able to fit a 29.8 crystal from my DPA crystal assortment. Those are, in my opinion, a great deal. The assortment comes with 10 sizes each from 27.8mm to 32.4mm in 0.2 increments. I pretty much use them for any non-armored crystal that takes a high dome crystal. I think they no longer make them but Cousins has still has some in stock but when I bought them they were around $40 for the set and now they are around $100. Still, at 40 cents a crystal it's still a good deal. For the large driving wheel, I remember I once assembled the keyless/motion works first and when I placed the large driving wheel it was interfering with the setting wheel on the dial side as the teeth were not fully meshing and it wouldn't fully seat. If that isn't the issue I got nothing and am looking forward to see how you solve it 🙂
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