The Breitling Watch Source Forums

Hi,
Is it possible my Colt44 Superquartz to gain half second for 2 weeks after it was accurate for almost a year? Doesn't the termocompensation mean it should run with a constant speed no matter of wear et c? Could it be some problem with the TC?
Thanks.

It's COSC certified to 15 seconds a year so some erdor is allowable. 2 seconds in 2 weeks is a lot but it also a short sample window. Keep an eye on it for a little while longer and if it continues to vady by a second a week then get it checked out.

Thanks,
but my question is is it possible to suddenly start gaining a second for a month, after it was accurate for almost a year?

To clarify, is it half a second in 2 weeks? If so that's one second a month - which is within the COSC spec which Roff specifies.

Without being facetious, if it's happened, then yes it's possible! Of course you'd have to be sure that you hadn't changed what you were calibrating it against etc. But with an accuracy to within a second a month I'd just be cheered and impressed that it lost absolutely no time at all last year rather than concerned that it was a second a month out now - which is, to emphasise, comfortably within COSC SQ spec.

Misread it initially, didn't realise that it was only 1/2 second in 2 weeks.

I don't see it as an issue, the watch hasn't been accurate for a year it has just not had a visible error for the snapshots that you have checked but there would have been slight variations that get corrected by the thermocompensation. Clearly possible and no evidence (yet) that anything at all is wrong.