Watchnoob
21
7140R minute hand backlash
Hi, my new 7140R seems to be exhibiting backlash on the minute hand. The amount varies across dial, but max 20-30s or so (half a minute marker). Is there a temporary workaround or does it need to go back to servicing center. Thoughts?

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cannon pinion
By: golden hands : August 7th, 2025-09:45
if the watch was second hand i would say this is the problem as wear would incur and it would need tightening. on a new watch this should not happen-unless the new machined cannon pinion is faulty/outside tolerance. see the 2 diagrams to explain ...
Hmm.
By: patrick_y : August 7th, 2025-23:58
Interesting problem. If it were a minute hand discrepancy, that would mean that the gears are uneven? Although this seems highly unlikely. An off-centered dial would also have the same effect - but would also be extremely unlikely. Stumped!
backlash
By: golden hands : August 7th, 2025-17:20
i think you mean-LOSS-which the watch is losing time when in the four positions stated GAIN-which the watch 'speeds up' in time in the other 2 positions. all in a day stop using BACKLASH-as that is a term used in gearing and not a watch term a watch will ...