he stated earlier it was rubbing bad enough he had it checked. if it was rubbing something is out of alignment and that will cause premature wear and stress on the conflicting parts.
the clasp on my gmt2c or daytona don't rub together when operating.
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cmr
OA-Black dial SS Daytona, V-White dial SS Daytona, Z-GMT2C
Wife, Z-Platinum Yacht Master, Black ceramic White dial SS Daytona,