Patek Philippe CALIBER 324 S Q Mode D'emploi page 4

Patek Philippe's Ref. 5320G is a perpetual calen-
dar that deserves to be called a creation for eternity.
The watch not only displays the correct date for
months with 28, 30, and 31 days, but also indicates
February 29, the leap day, every four years. Its design
is timelessly sleek, reflecting the past, present, and
future all at once. The dial shows the same configu-
ration that Patek Philippe chose in 1941 to define the
classic face of the perpetual calendar: a double aper-
ture for the day and month at 12 o'clock as well as a
subsidiary dial at 6 o'clock for the analog date and
the moon phases. These displays are complemented
by two small, round apertures for the day/night
indication and the leap year cycle. The self-winding
caliber 324 S Q with a Spiromax balance spring
®
made of Silinvar combines superb watchmaking
®
traditions with latest-generation technology. It is
protected by a retro-modern white-gold case with
three-tier lugs and is reminiscent of the legendary
1950s Ref. 2405. This subtle vintage aspect is under-
scored by the box-style sapphire crystal glass that
perceptibly overlaps the bezel. The sapphire crystal
case back exposes the architecture of the movement
and its refined finish, including the bridges with
chamfered and polished edges, the Geneva strip-
ing, and the Calatrava cross engraving on the 21K
gold rotor.
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