So is this a battery watch or perpetual watch?Which do you prefer?
I don't even own a battery watch. All my watches are mechanicals, or automatics as it were. I don't do quartz. I have a phone for accurate timekeeping. I only buy watches because the craftsmanship is amazing to me. I just like to look at them. None of them, and I have some nice ones, are more accurate than an iPhone.
I think I asked you this before, but my Rolex runs about 10 secs fast per day. Seems like that’s still within spec? Do you agree?
Opinions are like assholes on this stuff, but my opinion is 10 seconds fast is more unusual than 10 seconds slow. Neither is a huge issue. Slow usually indicates it needs cleaning or lubrication, whereas fast usually indicates it has been magnetized (yes mechanical watches can get magnetized which causes them to be off time). There are articles online for how to demag a watch. Might want to try that. Many of the newer watches are being designed with anti-mag properties - in fact Rolex made one many years ago, and recently brought it back. The Milgauss. I own one. Sharp watch. Omega Seamasters (higher end ones) now have a 15,000 gauss demag design.
A Rolex should be serviced every 7 years they say - but vintage opens a whole new can of worms. How old is the watch? I like to get a watch overhauled completely once it is 5-10 years old, but then if it runs fine not touch it again until it needs it (which is judged my how it is timing). Almost like the first oil change on a fresh motor, do it at 500-100 miles to get any crud out of it, then it is fine to let it ride more.
Let me know how old the watch is, and provide a pic if possible. I know you inherited it, so it might be REALLY old. And usually, on the really old ones, if it isn't REALLY off, you just let it ride because even service centers don't have the parts to fix the true vintage stuff. HTH.