I have a few autos in my collection (SINN 556A, HAMILTON with hand-wound ETA 6497, MARATAC with MIYOTA 8245), but I have not been yet through the servicing-thing and I had a few "basic" questions. If anyone can shed some light..
- can I go see my local watchmaker (assuming the movement is a common ETA or SELLITA, not a manufacture movement), instead of sending the watch to SINN ? (seems like it is a better option in terms of cost and turn-around time). What about specific spare parts like gaskets etc.., can SINN sell them directly to my watchmaker ?
- let's say my watch has Ar filling and copper sulfate capsule, I understand these must be replaced by SINN (same for UX). Can my watchmaker NOT replace them, and what will be the impact on the watch ?
- because to what I understand, these 2 items are here to get a longer interval between 2 services (I am not talking about fogging etc.. I don't plan to jump from ice cold water to boiling water with my watch on the wrist). Is this something we can measure ? It may vary a lot depending on the watch and its user, but I've read service intervals are about every 5-8 years, sometimes 10. What about watches with Ar/copper sulfate, is it like 12, 15 years ?
- if I go even further: I have a 200-500 USD watch, with a SEIKO or a MIYOTA movement. That means every 8 years I will have to spend 100-150 USD for a full service, that represents about 20-75% of the price of the watch ? I am not poor, I am not rich either but I just want to understand the whole thing. Of course, with a 2000 USD U1 (my target - but I may switch to an EZM3 if the U1 is too big/heavy), this makes much more sense.
- last question: ETA or SELLITA ? I have read everything and anything about who is the best between the two, overall ETA might be a bit better but there is nothing clear. What about servicing ? Is it easier to get replacement parts from one brand or the other ? Any cheaper ?
Thanks for your help !
Cheers from France