3130 movement gaining speed?

[tom1969]

Hello,

Recently I've picked up a used 114270 Explorer from 2008 in great (cosmetic) condition. Case and bracelet pristine without signs of having been re-polished, so I'm not concernned that there is anything worn-out or damaged. However, right after purchase in mid-February it gained about 2.5 s/day (measured over 5 days), but now it's gaining almost 10s/d.

My question: Could this be caused by the watch having been stored for a long time unused?

Of course I'll take it back to my dealer or to the jeweller's it had been originally purchased from, I'm just looking for an opinion.

[SearChart]

It being 12 years old means that your escapement is probably running bone dry by now, causing lower than optimal amplitude, extra wear and bad timekeeping.

I'd suggest getting it serviced.

[77T]

I agree with Bas. The usual disclaimer from a seller is “service history unknown”.

But if your seller gave you a guarantee then you could maybe get them to split the cost of an overhaul.

But I wouldn’t have just anyone do the overhaul. Perhaps agree with seller that you will send to RSC and split the standard costs.


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