Why my seiko speedtimer 7015 chronograph run smoothly when its day(morning till evening)
But its stop and heavy when its time to changing the day date,whats the problem and how to fix it..
You're not rebanking, but that is a lot of amplitude. What is the amplitude when you let the spring down about 1/2 turn?
As for the rate, that is not that bad for such a movment. If you close the regulator pins a bit it should bring the vertical rates up some.
They may be old , cheap, and simple in design but they were fitted to many watches. They were workhorses of their day. Repaired quite few of these and still have a few workers. A bit like the old Timex people did not repair them but replaced them, but in my opinion still worth doing if you can get the parts.
Hi Other than getting an anti fog agent from the opticians the only other way is to drill a series of holes around the circumference large enough to allow air flow to dissipate the condensation for that is what it is, This may not be a total cure but it improves it quite a bit.
Hello and welcome to the forum. You are indeed in a bit of a mess. If you are able to access Ebay then I would suggest that's where to start looking for a donor movement so as to be able to salvage the bits that are broken or missing. There are alternative sites to find parts, Second user parts, obsoletewatchandclockparts.com in the Uk for second user parts or, . Cousins.uk, A.G.Thomas, watch part suppilers again in the UK. The likes of Cousins also supply tools oils etc for the trade.
Cleaning can be done by hand, using Benzine, Naptha, or readily available Rononol lighter fuel or if you can get it Isopropyl Alcohol.
American based suppliers are Otto Frei, Esslingers, Jules Borel, Timesavers A quick trawl of the net for watch material supply houses will bring results.
Good Luck cheers