Considering Omega’s history, this is an interesting piece from the classic vintage period. Dated 1936, one has to allow a bit of ‘lead time’ – so understandably it doesn’t include movements that had just been introduced (such as the 23.4).
Furthermore, it doesn’t include movements that originated as Lemania (as did the 321 later!) but were integrated into Omega’s range (such as the 28.9 CHRO, 33.3 CHRO or 53.7, all of which dated from 1932/3).
However, it bridges some of the newer movements (such as the 12.6, T12.6, T17, 26.5, 37.5, 38.5 and 39 CHRO) which replaced the older/original movements (such as the 9’’’, 12’’’ 18’’’ CHRO and 19’’’ CHRO). In fact it’s a bit surprising to see these older movements listed because they were no longer shown in the catalogues by this time.
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