Don't bother to try finding one here in Singapore for 7750 repair, don't think our local smiths can fix or willing to do it. If they do, they told me at least 2 months to fix or replace the whole engine. Worse, the way the talk to you is like we can only afford replica watches.... Have had a bad experience lately with trying to have my PAM 187 G repair but they way they tell you:
"..... fake one (as if not worth repairing) and they will depends on the "master", hence will take at least 2 months and the cost will be at least S$280.00 depends on spare parts, etc..... Can you wait and also too expensive to repair?" and I got quite pissed off with the way they looked at you... "... Asked him what about the DSSD I'm wearing now... how much is the normal servicing?"...... He took a look wearing his loupe and answered "Almost the same price, if need to replace parts, it will be more..."
I told him off... "Uncle, i guess you are very experience in changing batteries and selling clocks.... Mind you, this is an authentic DSSD! Don't simply brand me as a man who only wear replica watches just because i bring a replica watch asking for repair...".