grumio
313
Different Omega versions of this Lemania base chronograph
Mar 21, 2013,03:31 AM
I had some Omega information which I thought might be of interest for this thread.
Omega released a number of variants of this movements as Cal 33.3 Chro over time, moving from a the original mono-pusher version, progressively adding a dual-pusher reset design, friction set jewels, a temperature compensated hairspring, incabloc shock protection, and a change to the minute jumper design.
The movement in yours looks to be somewhere in design between the 1st Omega mono-pusher version introduced in 1933, and the 1st T1 revision with a separate reset-pusher introduced in 1938 (shown below).
You have a lovely piece there
grumio