unxsr
·Weird question but if you can to choose when buying a vintage watch, would it “better” to buy one that runs faster or slower? Curious if one is favored over the other?
I don't really understand the question or may be I'm stupid. A Watch doesn't have to run fast or slow but with a decent delta in the 6 positions which results in a decent average accuracy on the wrist. When you have an important delta it's rather logical that when wearing it you have more risk of inaccuracy as your days are not always the same : walking, sitted at your desk, your watch at night on your table (position?)
according to the condition/age/quality. A 30 second delta on very old watch in not rare. As for myself, a delta superior to 20 seconds on (let's say) a post 50's watch really p... me off but this can be due to many factors : balance, mainspring, jewels setting, condition of the wheels.
However, one thing to remember is that in 24 hours there are 86400 seconds. So if a watch run at +5 a day it's just a 0,00005% Error.
Your question doesn't say how fast or slow.
If a newer watch and it's running one minute fast per day, i would prefer that over 1 minute slow. Neither is great, but I might get lucky and the fast watch is just magnetized, which is a cheap and esay fix.
If an older watch, it could be crud and worn jewels that made it run fast. This could be true for a newer watch but might be less likely as that takes time to cause that much wear.
Magnetized watches can run faster or slower. I was trying to think of a situation where faster or slower would be preferable and that's all I could think of. Even that though is a guess and hope you got a lucky fix.
One thing Omega did was made their METAS +/- 0 and +5. It's still a 5 sec difference but they know it's better to be early than late. So generally you coukd say people prefer slightly faster than slow.
But since you asked about buying vintage, i suppose you are trying to learn something about the condition of the movement. One is not better than another as the fix is a service. I suppose different parts are involved and it might be more difficult to source good replacement parts needed (whether it's slow or fast )for the vintage movement, but that's a rabbit hole too deep for me.
I like how you think though. Never stop being curious. 😀
One thing Omega did was made their METAS +/- 0 and +5. It's still a 5 sec difference but they know it's better to be early than late. So generally you coukd say people prefer slightly faster than slow.