I have a 70's Omega DeVille f300 I've had since new. I just replaced the battery with a Renata 344 and the watch now gains time a LOT. It gains 23 seconds per minute.
Does anyone out there have any advice?
Thanks in advance for your help!
and before changing the battery the watch keeps good time? or the watch did not have battery for long time?
Is it possible that it could have become magnetised at some point? If memory serves me right, such a large time gain or loss in a tuning fork movement can be down to magnetism. A cheap and easy fix to try before investing more in repair costs.
In fact, I’d almost forgotten about it but, prompted by your post I’ve set it and strapped it on.
And my present stock of batteries 😉
In fact, I’d almost forgotten about it but, prompted by your post I’ve set it and strapped it on.
And my present stock of batteries 😉
I don't think so. It was in my safe.
Regarding the battery. The battery I used is identical to your picture of your watch with the bad timekeeping (Renata 344)
Regarding the battery. The battery I used is identical to your picture of your watch with the bad timekeeping (Renata 344)
Can you tell me if your watch was running very fast with the original Renata 344?
Can you tell me if your watch was running very fast with the original Renata 344?
I don't think the small differences between an alkaline and silver oxide battery will account for 23 sec per minute gain. Your watch needs a service as it is mostly likely the index jewel is skipping teeth. See: http://members.iinet.net.au/~fotoplot/accindx.htm
