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Old 17 February 2014, 09:48 PM   #1
Watchcentric
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Chronoscope - service results help

Hi,

I recently had a watch serviced and I got this 'chronoscope' result.

I'm not familiar with this device, so can someone please explain? What do the different symbols mean?

Many thanks in advance!

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Old 17 February 2014, 11:52 PM   #2
b06tmm
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It looks like symbols to indicate the watch was timed face-up, face-down, crown-down, crown-left, crown-up, and crown-right.
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Old 18 February 2014, 12:16 AM   #3
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The D line is the difference in seconds between the fastest and slowest position.

The X line is the average of all the above positions in seconds.

Second Column of numbers starting with 297, is amplitude measured on degrees.


Last column is beat error.

What caliber does your watch have?


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Old 18 February 2014, 09:52 PM   #4
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Thanks for your answers!
Now I understand, but these results are not very good I think?

Shouldn't a COSC watch have (average?) difference between -4/+6 seconds?
Since this watch is recently serviced, do you think I should go back and demand it to be within COSC specs?

Thanks!
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Old 19 February 2014, 02:34 AM   #5
Vanessa CW21
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Depends on age and caliber of the watch. The vintage time pieces have different tolerances.
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Old 20 February 2014, 08:02 AM   #6
Watchcentric
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Quote:
Originally Posted by Vanessa CW21 View Post
Depends on age and caliber of the watch. The vintage time pieces have different tolerances.
It's not a vintage watch (from 2009 I believe) and so a modern caliber (3130).

It should be within COSC specs after service, right?
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Old 20 February 2014, 08:40 AM   #7
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Yes. But wear it and look at the time difference. Don't rely on the timing machine. It could need to be calibrated....

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