Housed in an 18K white gold case measuring 36mm in diameter, the reference 3940G is one of Patek Philippe's most celebrated perpetual calendar references. The silver dial presents the full suite of perpetual calendar indications in a refined, uncluttered layout that has made this reference a longtime favorite among collectors.
Driving the watch is the automatic Caliber 240 Q, a 27-jewel movement that manages the perpetual calendar's complex date, day, month, and moon phase displays with no manual correction needed until the year 2100. The movement's slim profile contributes to the elegance of the overall package.
The watch is fitted with a leather strap secured by a fold clasp, complementing the white gold case with a classic and comfortable wearing experience.
