Patek Philippe Perpetual Calendar 3940J

Patek Philippe Perpetual Calendar Ref. 3940J featurs a classic 36mm case crafted from 18k yellow gold paired with an elegant silver-white dial and integrated black leather strap. Its legendary three-register layout beautifully distributes complex complications with ultimate legibility, the 9 o'clock subdial displays the day of the week alongside a 24-hour AM/PM indicator, the 3 o'clock subdial incorporates the month and a leap year cycle tracker, and the 6 o'clock position houses a romantic moon phase indicator surrounded by a circular pointer date track. Driven by the incredibly slim automatic Caliber 240 Q movement with an integrated micro-rotor.