Seamaster Chronograph
“Calibre 321”
The Seamaster Chronograph was created in 1946. It was formerly called “27 CHRO C12 T2” and thereafter the calibre 321 used on the first generation “moon watches”.
The calibre was replaced in 1968 with the cam-calibre 861.
Please Note:
These are a representation of the timepieces we stock
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