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Horological Meandering

mmmm it's a manual wind Venus cal 178 chronograph mvmnt prior to the introduction of the cal. 11 by Buren, Hamilton, and Breitling and the El Primero Calibre 3019 PHC both of which were introduced in 1969

 

1960s manual-wind chronographs often featured no date window at all. The placement of a date window between 4 and 5 o’clock became common in the late 1960s and 1970s, particularly with automatic chronographs like the Zenith El Primero (A386 reference), but this was not standard on earlier manual-wind models. Do u mean this is not a chronographe seriously ??



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