Quote:
Originally Posted by Ck8
Well that depends on how maticulous the watchmaker is with reguglating thw watch. I have got a SS Daytona that was -3 secs/ day and I had it regulated and its now spot on and I mean spot on daily. I had a Exp II for 10 years and that was spot on from first day without any regulation. I also had a TT Datejust that was spot on after a service. Now I have a GMT IIc that is running +4 secs/day I am letting it run in and perhaps I will send it back to get it regulated. Because I have had Rolexes in the past and my present Daytona with superb accuracy, I am spoilt, and I want all my Rolexes to be just accurate.
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Well how much more accurate could anyone ask from any mechanical watch
-3 seconds or +4 a day is superb.And if any mechanical watch runs to or inside the COSC spec you should be jumping for joy.
Below is the COSC testing standards first colum for
movements of Rolex size.