Caliber 8906 Watch Winder?

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yishmeister

·Aug 12, 2024

Two months in I still love my PO GMT and I have worn it every day since purchase but I have three other watches that I’d like to rotate in weekly while wearing the PO on the weekends.

Do I need a winder for the 3 weekdays or so it will not have power? Or am I just better manually setting it Saturday morning till I reach the current date and then putting it on the wrist and rolling out.

 

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PandaSPUR

·Aug 12, 2024

That movement has a 60hr reserve so yea letting it sit for 3 days will make it stop. Setting the time again on Saturday morning is not a big deal if you dont mind it.

I have a bunch of watches I rotate so I keep all of mine on a winder for convenience.

 

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Donn Chambers

·Aug 12, 2024

While there isn’t anything wrong with setting the PO each weekend, having it sit on a good, programmable winder won’t harm it any more than wearing it every day, and possibly less because there’s no chance of dropping it or knocking it against a door.

Just make sure it is programmable and set to the minimum number of turns per day so that you minimize wear and tear on the movement.

 

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JimInOz

·Aug 12, 2024·Melbourne Australia

You can also connect your winder via a programmable power point dongle.
I use one to switch my test winder on at a specific time each day, run for 30 minutes and turn off.
Also have about 6 of them around the house for various functions. All controlled via an app.

Aussie version, you should have something similar where you are.

 

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yishmeister

·Aug 13, 2024

Thanks for the replies!

So I am gathering that winders are essentially only for convenience. Having the watch sit there with no power for a couple days isn’t going to harm it.

 

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Dan S

·Aug 13, 2024

Y yishmeister

So I am gathering that winders are essentially only for convenience. Having the watch sit there with no power for a couple days isn’t going to harm it.

Correct. In fact, the watch will accumulate less wear if it's not running all the time, although given the usage pattern you described it's a fairly marginal difference.

 

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yishmeister

·Aug 14, 2024

Dan S

Correct. In fact, the watch will accumulate less wear if it's not running all the time, although given the usage pattern you described it's a fairly marginal difference.

Should I be concerned about the screw down crown’s threading if I am following the use case I presented in OP? Unscrewing and setting time on a weekly basis?

 

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Donn Chambers

·Aug 14, 2024

Y yishmeister

Should I be concerned about the screw down crown’s threading if I am following the use case I presented in OP? Unscrewing and setting time on a weekly basis?

Not if you are careful.

 

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Dan S

·Aug 16, 2024

Y yishmeister

Should I be concerned about the screw down crown’s threading if I am following the use case I presented in OP? Unscrewing and setting time on a weekly basis?

You need to learn how to unscrew and screw down the crown properly in any case. Even on a winder, the watch probably won't keep perfect time, so you will need to adjust the time.

 

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yishmeister

·Aug 26, 2024

I tried the use case two weeks straight now. It’s actually kinda fun. The Friday night or Sunday morning I retrieve the PO…unscrew, and pull the crown out to position 3 and turn till current date and then till I get to current time. The GMT hand sets along concurrently and accurately too. And while I am setting the time, the watch gets some power due to the movement.

Takes about two/three minutes to do and I am out the door. It’s a nice way to connect with the watch.