Quote:
Originally Posted by zengineer
The FOIS is listed as 40mm and the Professional at 42mm but the difference is really just the crown guards adding a few mm. They share a common bezel. The lugs are also shaped differently with the pro having a 20mm gap and the FOIS 19mm like the racing models and some of the previous date automatic (pre co axial) versions.
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Thanks for this.
I think I'm going to have to try one of these on.
