Could someone please tell me what model or case ref this Seamaster crown will fit? Unfortunately this crown will not fit your normal 2.5mm tube. Am baffled what model or case ref this crown will fit. Any insight would be much appreciated. Many thanks.
I've got a Seamaster Piepan Circa 1950s with one of these clover Naiad crowns and had a Constellation Piepan with one too from the same era
Yes, but your Seamaster Piepan has a 2.5mm tube, which is either case ref 2627 or 2949. But this crown is not for a 2.5mm tube!