I would love to know a few peoples opinions on timekeeping.What sort of timekeeping do you expect your 60's or 70's Heuer to achieve?
would it be 1 min a day or 1 min a week?
even after a service what sort of accuracy should we accept? after all those wheels have been turning an awful lot over the years, so wear and tear must play a part. Do we know what reliability heuer claimed on the timekeeping on particular movements? and how do they rate nowadays.
I ask because i find it interesting and also recently serviced a calibre 12 which is loosing 1 min every 3 days.
Nic