I understand there is a member here that sells nice, vintage-logo modified crowns for the cal. 321 Speedmasters. But that aside for a moment: for the ref.105.003 I see two replacement crowns listed, Bestfit numbers 8100/1077 and 8100/1095. Does anyone know the difference between these two, and what Omega's part numbers are for them?

Many thanks,

M'Bob