Hi all - I just picked up a full-size automatic Seamaster 200M from about 1990 as a bit of a project. I'd like to use the six-lobed crown from the early models of this reference (2800.50.00 or 398.1041 I think?). Does anyone have a part number for that crown and the right crown tube for it? Anyone have a set or just the tube for sale? I already have the crown that I think is the right one. Thanks.
Pics of crowns below, six-lobed one on the right of course !