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killian33
PostPosted: Thu Dec 26, 2013 2:54 pm 
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So one one of my Chronos is gaining over a minute a day. Is that a sign of needing servicing or something that would be fixed during a service? What is the likely cause (for my own education)?

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Breitling Navitimer Pluton Professional A51038
Breitling Chronomat WindRider D13048
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Breitling Chrono Avenger Titanium (Later) E13360
Breitling SuperOcean (Earlier) A17040
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Roffensian
PostPosted: Thu Dec 26, 2013 3:17 pm 
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Could be caused by a million different things. Technically the amplitude of the balance spring is too low, increasing the frequency and therefore the watch gains. It may be a sign of a worn out mainspring and / or friction in the running train that is reducing the energy that reaches the escapement, but......

It may simply be a case of it being magnetised. First step is to get a watchmaker run it through a demagnetiser which takes about 2 seconds and see what the rate is then.
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killian33
PostPosted: Thu Dec 26, 2013 3:48 pm 
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Good advice. Thanks. I will resist the temtation to use the deguasser at work. :wink:

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Breitling Navitimer Pluton Professional A51038
Breitling Chronomat WindRider D13048
Breitling Chronomat Yachting A13047
Breitling Chrono Avenger Titanium (Later) E13360
Breitling SuperOcean (Earlier) A17040
Top
 Profile  
Reply with quote  

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