I don't know if any of you remember the 1969 Zenith Captain I had bought in a jumble sale.
In 2008, I sent it to Zenith in Le Locle, here in Switzerland, and paid quite a lot of money to have it refurbished and serviced.
Since then I have worn the watch maybe a dozen times and it has always kept excellent time.
Last weekend I decided to wear the watch and wore it on Saturday for the whole day. Kept perfect time.
I set it on my bedside table at night and on Sunday morning I was very surprised to see that it had gained three minutes.
I corrected the time setting and wore it all day Sunday. It kept perfect time all day.
On Monday morning I found that it had again gained three and a half minutes.
Any ideas what could be causing this please? Lack of use maybe? Hardened lubricants?
Surely that would make it run slow, not fast.
Thank you for any pointers.
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