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One of my watches has developed a fault where the hands stop moving as the date is about to change. It hasn't run down as the mechanism the seconds hand keeps moving so I assume that there is still power in the mainspring. If I move it past the date change it carries on as per normal.
Is this a common fault, if so is it a simple fix?
Or is it symptomatic of something more serious?
This happened on my Seamaster 300, and I was told on here that it's quite a common issue - date wheel failure.
If the date wheel’s faulty I would expect it to be OK on some changes but not others, usually the damage is confined to one or two teeth, not all 31.
OP doesn’t name the watch, so predicting what’s wrong is a guessing game.
Disagree about it being a common issue. If you’re referring to the recent Seamaster Pro, with the cal 1120 (ETA 2892) I’ve never heard of it happening, I’ve worked on plenty and I don’t recall seeing damage to date wheell teeth. The 1960s Seamaster 300, with the 565 movement , can give problems with the quickset not working, but the normal date setting usually functions OK even though the teeth are worn.Quote:
Originally Posted by Tom-P
I'll bet it's a loose canon pinion, the dial side needs stripping to tighten it up. It can happen to any watch eventually.
Thanks for the replies. I think the date ring is fine as it clicks over nice and crisply if I use the crown. It just seems to me that there isn't enough strength in the mechanism to force the date change.
Apologies, should have given the obvious information at the start. The watch is an Orex circa early 80s. It has a Seagull ST5D movement (although I haven't had the back off to confirm).
Tapatapatapatapatalk
Could be power reserve issue? Broken mainspring?
Doh sorry for confusion, addled memory - I was told that it was the *hour* wheel that had failed, not the date wheel.Quote:
Originally Posted by walkerwek1958
I agree with this diagnosis.Quote:
Originally Posted by Thewatchbloke
BTW does the crown feel really easy(sloppy) to change the time and when you press it back in does the time change/jump from what you have set?
Quote:
Originally Posted by Melt
Having tried it seems reasonably tight and the minute hand stays still when I press the crown back in although I have to be a little careful as it is quite easy to turn the crown when pushing it in. Or is that what you are asking about?
Sometimes the friction between the crown seal and pendant tube masks the feel of the cannon pinion, the foolproof way to assess the cannon pinion is with the movement out of the case.
Depending on the design the cannon pinion can usually be tightened, this is checked as a matter of course when a watch is serviced. Its quite a tricky job to do and it’s not a job for someone who lacks experience or doesn’t know what he’s doing.
If the cannon pinion’s loose its highly likely the watch has had a long hard life without being serviced. There’s as much time and effort required to service a Seagull as an Omega, be prepared to pay a repairer’s going rate to get this watch sorted.
I've done a bit more digging but it doesn't seem that the ST5 suffered any specific problems in general or this problem in particular. (Turns out it is unlikely to be the ST5-D as that is the automatic version, it'll be the ST5-B which is the date version. ) Looks like it'll be something to be tucked away until I can have it serviced. Or find a working movement.
Tapatapatapatapatalk
It may be a case of simply lubricating every 5th calendar wheel disc tooth. I have seen the calendars jam on these because of lack of the tiniest amount of very fine oil where the advance lever meets the wheel teeth on the disc. The advance lever springs are fairly strong to give a quick change of date.
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