I'm looking at 2 Speedy day/dates. A 3523.30 and a 3521.30. Can someone tell me what diameters these are?

Stu

 

g o o g l e says ....

both seem to have Case Diameter: 39 mm < here's one example http://www.omegawatches.com/collection/speedmaster/day-date/35233000 >

 

Thanks. Odd, but the pages I pulled up on Omega's vintage site listed everything but the case diameter.

 

justs takes a bit of digging ... you should just send a PM to @Kringkily