The perpetual calendar—or quantième perpétuel ... Pushing the crown back in one stop activates a set of wandering wheels that puts it into “position two prime,” a separate setting ...
The star of the show was calibre 7138, the new perpetual calendar movement, called a quantième perpétuel, or QP, in French. Sebastian Vivas, the company’s heritage and museum director ...
Calibre 7138's movement relies on a single crown to set every function for the calendar An Audemars Piguet Royal Oak perpetual calendar ... array of gears and wheels can easily break while ...
The star of the show was calibre 7138, the new perpetual calendar movement ... the complex array of gears and wheels can ...
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