Is it time for a sevice?

[Boopie]

My husband bought a nearly pristine 16710 GMT two years ago, from a reputable dealer. It is circa 2002, and I suspect it was worn very little by the original owner. It keeps absolutely perfect time but there is maybe 16 hours of a power reserve. The watch doesn't stop when he takes of off at night, but if it is off his wrist for a night plus almost a full day it stops.

Is it time for service, or would he be damaging the watch somehow if he wore it for another year or two like this? He does wear it every day, and winds it, and takes it off every night for bed. Sometimes he is involved in a home improvement project or some other task where he takes it off to avoid damaging it. This is a fairly new phenomenon, and it certainly wasn't like this when he bought it.

Thanks.

[Tools]

To check the power reserve you need to wind it fully, then set it down and let it run until it stops.

Many folks are only active enough to put about 20 hours of wind into their watch, which is how long they will tick when taken off.

[liebs520]

How do you know when an automatic watch is fully wound?


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[WS9D]

Originally Posted by liebs520

How do you know when an automatic watch is fully wound?


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give it 40-50 Full winds. I was short changing myself early on by only turning the crown a half revolution and calling it "1" turn. To the best of my knowledge, there's mechanisms in place to keep it from over winding.

[Thatguy]

Originally Posted by liebs520

How do you know when an automatic watch is fully wound?


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The winding feels differently when fully wound.


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[liebs520]

I have a diver with a screw-down crown--can I wind the watch manually? I thought it could only be wound via the rotor.


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[karmatp]

Originally Posted by liebs520

I have a diver with a screw-down crown--can I wind the watch manually? I thought it could only be wound via the rotor.


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Unscrew the crown and wind 40-50 full winds and you will have the full power reserve.

[tamiya]

Originally Posted by liebs520

I have a diver with a screw-down crown--can I wind the watch manually? I thought it could only be wound via the rotor.

Is it a Rolex? Then yeah, you can crown wind it.

But if it's a vintage Seiko diver, a lot of those iconic Seiko autos can't be wound via Crown due to their movement's design limitation.

[liebs520]

Originally Posted by tamiya

Is it a Rolex? Then yeah, you can crown wind it.



But if it's a vintage Seiko diver, a lot of those iconic Seiko autos can't be wound via Crown due to their movement's design limitation.

It's a modern Omega Seamaster 300. So if I unscrew it but don't pull it out to adjust the time, I can wind it manually? Who knew...