On Offer from the Vintage collection, we have this 1992 Patek Philippe Perpetual Calendar reference 3940 in 36mm 18-carat rose gold case. The dial features a perpetual calendar indication and a moon phase indication at 6 o'clock. On the silvered dial you have applied rose gold baton numerals and on the open case back you can enjoy the sight of the off-set micro-rotor movement. #watchporn #patekphilippe #3940