What size is a new crystal for Vintage Omega 1939 30T2 wrist watch

kenby · Mar 22, 2022

Fellow Omega aficionados, I am looking for help in sizing a new crystal glass for recently acquired Omega 30T2.
I accidentally broke the crystal taking the watch back off....doh!

The watch is 29mm wide, 30mm inc. crown

I have measured the inside bevel to 27mm and the outer bevel to 25.4mm. What kind of +/- tolerances am I looking at?

Any help, advice would be greatly appreciated.
Many thanks
kb

SkunkPrince · Mar 22, 2022

What’s the case number?

OllieOnTheRocks · Mar 23, 2022

the case can't be 29mm if it is a 30t2 as the 30t2 movement is 30mm itself. I believe the smallest case size for the 30t2 movement is 32mm.. are you using vernier callipers to measure?

SkunkPrince · Mar 23, 2022

OllieOnTheRocks
the case can't be 29mm if it is a 30t2 as the 30t2 movement is 30mm itself. I believe the smallest case size for the 30t2 movement is 32mm.. are you using vernier callipers to measure?

Without the case number, anything else is speculation and probably a waste of time, especially if the person performing the measurements is not a watchmaker.

OllieOnTheRocks · Mar 24, 2022

SkunkPrince
Without the case number, anything else is speculation and probably a waste of time, especially if the person performing the measurements is not a watchmaker.

I change crystals all the time and I am not a watchmaker. Quite often I do not know case references especially on watches from this era as they are not always in the caseback. But even if they are it never influences my purchase as I just buy generic crystals. Presuming the OP has vernier callipers I am sure with some guidance they will be able to find the correct measurement,

What size is a new crystal for Vintage Omega 1939 30T2 wrist watch

kenby

SkunkPrince

OllieOnTheRocks

SkunkPrince

OllieOnTheRocks

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