I have an Oris Diver 65 that I bought a year ago from Jomashop. It ran well the first nine months, kept great time, etc. For the past three months, however, its been slowly winding down and stopping. The autowind works, clearly, but doesn't work well. It USED TO BE that even wearing it a few hours a day was plenty to keep it running; now, even if I give it a good hand-wind and wear it all day, every day, it will stop over night after a few days of wear. If I am super-active, for example if I go jogging, I get more life out of it, so there is SOME winding going on. Just not enough.
Evidently, this is a known problem with the Selitta SW-200 movement. (Also by way of comparison, I own two other automatics that runs just fine day after day under exactly the same conditions. Also, if I wind it by hand and set it on a table I get 40 hours of power, so its not the mainspring.)
The watch does seem to be magnetized, it moves a compas needle substantially. I took it to a local watchmaker who said he put it on a demagnetizer, but it still moves the needle. He also took off the back (!) and said everything looks ok.
SO, my options are: 1) return it to Jomashop and ask them to service it. Or (2) find a reliable place and pay for the service myself. Two watchmakers said they'd just give it a full refurbish, which seems a lot for essentially a new watch, and will be a few hundred.
Thoughts on what to do? On the one hand, having Jomashop do this saves me money. On the other hand, I worry they will send it to someone who will do a crappy job; send it back and tell me there's nothing wrong; or otherwise I'm just without my daily wear watch for God-only-knows how long. Is it worth it to pay for this myself and have more control?
Thoughts/advice appreciated, and if anyone thinks they know what's wrong with the watch, I'm all ears!
(ps as a side question, local watchmaker took back off, said rotor was spinning fine, put back on again. Do I now need to panic that the watch isn't waterproof anymore? I researched this question on WUS, see varying answers, so I will panic unless I hear otherwise.)