I currently have this Mido Ocean Star datoday that I'm trying to restore. The original crown with attached stem extension is missing so I don't know the precise dimensions I need. The case ref number is 8309 and the movement is an ETA 2836. The pendant tube is 3.55 mm and the diameter of the crown would have been between 4 and 4.20 mm. Is there someone with knowledge how to obtain an original crown of this particular model/case number? Or maybe has a similar watch and could provide me with the correct measurements I need?
I already checked Cousins and wrote some guys like Blake from Scotchwatch and Hans Eckert. I also checked Bestfit and they do list some Midos but my copy of Bestfit has ETA ending at 2512 so the models with 2836 aren't included.