
The Patek Philippe calibre 31-260 PS HMD AU is a self-winding movement designed for an automaton watch, featuring an on-demand retrograde hour and minute display. Measuring 33.8 mm by 4.00 mm, this 267-part movement utilizes a platinum mini-rotor, Gyromax balance, and Spiromax balance spring to deliver a 38 to 48-hour power reserve. It is distinguished by its patented disengaging clutch system and Patek Philippe Seal certification.
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