Patek Philippe 5940J-001 18kt Yellow Gold Perpetual Calendar With Leap Year 37mm

If you keep a close eye on Patek Philippe, you probably remember the vintage-styled 3670A and 5950A chronographs that were equipped with hand-wound movements and featured only slightly modernized “historic” cases. The new Patek Philippe Perpetual Calendar automatic watch (Ref. 5940J-001)comes in the same cushion-shaped body, but is equipped with an ultra-thin self-winding caliber that not only brings you an advanced version of perpetual calendar, but is also considered to be one of the most accurate mechanical movements currently in production.

Being just 27.5 millimeters in diameter and less than 3.9 mm thick, the time-proven Caliber 240 Q movement features an off-centered unidirectional micro-rotor and is
equipped with the aforementioned complete calendar module that adds only 1.35 mm of thickness to the total height of 2.53 mm of the “tractor” movement.

Only 37 millimeters in width and less than 45 mm in length, this beautiful case will look good on any manly wrist, Another nice thing about this watch is that it comes with a pair of interchangeable sapphire crystal and solid case-backs.

As it is usually the case with perpetual calendars, the cream-toned, grained dial of the watch looks somewhat cramped, since each of its three sub-dials serves not one, but two functions. The one at 3 hours indicates current month and leap year; the sub-dial at 6 o’clock displays phase of the moon, as well as date; and, finally, the counter at 9 hours shows current day of week as well as 24-hour indication.