what is the timer telling me?

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what is the timer telling me?

#1 Post by tse » Mon Nov 13, 2017 12:49 pm

So I got the Model 1000 timer as several people recommended and am having a fine time with it. Pretty easy to interpret the results but this one is puzzling. This is a 987F. I gave it a test run on receipt and it ran 40 hours gaining about 1-2 minutes the first 24 hours.
The one thing in common among these tests is that the change from fast to slow and vice versa occurs every six seconds regardless of which position. The only thing I can think of is that (IF I have my math correct) six seconds is the time for one full rotation of the escape wheel. So would this indicate something wrong with the escape wheel? Or something related to that?

tom eanes
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Tom Eanes

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Re: what is the timer telling me?

#2 Post by HandyDan » Mon Nov 13, 2017 7:04 pm

One way to find out... change the escape wheel.

You also want to make sure the watch is demagnetized.

You’ve got a lot of speed and amplitude difference dial up vs down so there’s definitely a balance issue.

This all assumes the movement is cleaned. You could also have dirt somewhere, especially under the balance cap jewels.

Check out Paul Silvia’s blog on adjusting watches. He’s awesome at this stuff.

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Re: what is the timer telling me?

#3 Post by stryfox » Tue Nov 14, 2017 9:20 am

Dan. Thanks for sharing that link. I spent an hour reading last night. Some great information there.
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