Speedmaster waterproof

[vinnie_p]

Can somebody please confirm or otherwise. I understand that any Omega Speedmaster that is waterproof has Seamaster engraved on the case back. Is this correct?

Vince

[vinnie_p]

In reply to the original question "Is it correct for some Speedmasters to have the Seamaster stamp instead of Speedmaster on the back". I have done some research and have discovered that in fact, quite a lot of Speedmasters did have Seamaster on the back. I also found out that the watch I was concerned about, mine, is actually quite rare and only made for the German market. It is a 1982 Speedmaster with c.861 movement in brushed stainless with a silver/grey face and, to my relief is totally correct! To add a little more, Speedmaster Pro's never have Seamaster on the back.