[TheWatchGuy]

Originally Posted by CarPoor

Lots of good posts, thank you. I can only wear wood battery watches bc I kill the battery in metal watches within two weeks to a month for some reason. My wife started the wood ones after talking to a local jeweler. I have a few high end metal watches that are just about useless, but the mechanicals I’ve never considered. Will need to dig into this.

work with magnets or electrical currents or something?

[CarPoor]

Originally Posted by TheWatchGuy

work with magnets or electrical currents or something?

Lol no, corporate finance. It’s a biological chemistry thing I guess I’m told. My mother had the same issue, but she’d just toss the watches.

[Wills2]

Originally Posted by 3rdPedalAddict

I had a planet ocean 2500 that was horrible until it got past 5 years as a daily and then it started to keep time perfectly to a second fast per month. I read that the oil dries up and changes the movement.

My 2500D PO keeps incredible time so I'd concur.

[Housekeeping]

My Oris keeps damn good time, has for 13 years now.

[shay2nak]

My Sub and Speedy keep great time. You have to know how to position them when off the wrist. They both naturally run fast, however if I keep the Speedy wound daily and placed crown down it will slow and hold it's time. The longer the spring is unwound the faster it gets. This is why a daily wind will help keep a consistent time. The Sub I place face up and at a 30-45 degree angle with the top of the watch elevated. This keeps the time (no gain or loss). If it's too fast, I place the watch vertically and it will slow.

[s3ri3s1]

My Air King always spot on. I wear it daily and haven't had any issues with it being slow or fast.

[ny325]

My Submariner, and Datejust run about 2-3 minutes fast. My Timex Expedition Sport keeps better time.

[TheWatchGuy]

Originally Posted by ny325

My Submariner, and Datejust run about 2-3 minutes fast. My Timex Expedition Sport keeps better time.

2-3 minutes in a day indicates a significant issue. time to get them serviced.

[TheWatchGuy]

running +1 s/d now. a 50yo movement

[F32Fleet]

Just had my Omega 8500 serviced and it's more accurate than when it was new.

Something to keep in mind is power reserve. One average the accuracy of a mechanical will vary not only l due to position but also by tge amount of power generated as the mainspring unwinds. My Omega 8500 has two in sequence where the idea is to provide consistent level of power over a long period of time.

[TSM330i]

All of my modern Rolex's were fine. Maybe would lose a minute after a couple of months.
My older, classic Rolex's (close to 50 years old) run a little slow, but it takes a few weeks to notice the change.
I'd never change my mechanical watch for a quartz - ever.