Patek Philippe Annual Calendar 5905P Chronograph 42mm Blue Dial Platinum T

For sale is an exceptional Patek Philippe Annual Calendar Chronograph Ref. 5905P, an elegant combination of flyback chronograph and annual calendar. The solid platinum case with a 42 mm diameter gives the watch an impressive presence and underscores the exclusive character of this model.

Theblue dial is particularly striking, with its clear and balanced design perfectly integrating the various complications. The day of the week, date, and month are displayed via separate windows in the upper part of the dial. At 6 o'clock is the 60-minute chronograph counter with integrated day/night indicator.

Inside is the high-quality automatic manufacture caliber Patek Philippe CH 28-520 QA 24H. It combines a flyback chronograph with column wheel and vertical clutch with an annual calendar. This automatically accounts for months with 30 and 31 days and only needs to be adjusted once a year, at the end of February. The movement, consisting of 402 individual parts and 37 jewels, operates at 28,800 vibrations per hour and offers a power reserve of approx. 45 to 55 hours.

The flyback function makes it possible to reset a running measurement with just one push of a button and immediately start a new measurement. Through the sapphire crystal caseback, the elaborately finished mechanism with its central rotor made of 21-karat gold can be viewed.

The interplay of platinum, the blue dial, and the technically sophisticated calendar-chronograph combination makes the Ref. 5905P a particularly attractive Patek Philippe for collectors and enthusiasts of complicated mechanical watches.