Need help on a Breguet Hora Mundi 3700 problem

Mar 11, 2019,09:24 AM

Bought a pre-owned Breguet 3700 World timer. Just got it back from a service in Switzerland via Swatch Toronto.

The watch's minute hand loses about 2 minutes per day. The seconds hand runs correctly (-1 second/day).After testing, I have identified the issue; the date change at midnight.

At 10 pm, the watch runs correctly. At 11 pm, it loses a minute. By midnight, it loses 2 minutes. The seconds hand runs correctly. After the date change, the watch runs correctly again. In the morning, the watch still has the 2 minutes lost at midnight, but no more than that.

Everything else works fine, date change and world timer dial.

So, what's happening? Anyone else had this experience?

  login to reply

Comments: view entire thread