Introduction
A miracle of transparency, the Reference 5304
self-winding Grand Complication with minute
repeater and retrograde perpetual calendar is
reinterpreted in a new rose gold version on which
the bezel, lugs and fold-over clasp are enhanced
with 80 baguette-cut diamonds ( ~ 6.22 ct). This
sparkling touch highlights the ingenious calen-
dar display system with sapphire disks. The "leaf"
motif engraved on the white gold inserts adorning
the sides of the case is echoed on the off-center
rose gold mini-rotor visible through the transpa-
rent case back.
Reference 5304/301
Caliber R 27 PS QR LU
Wristwatch with minute repeater.
Perpetual calendar with retrograde date.
Self-winding. Rose gold.
The minute repeater
On demand, the minute repeater strikes the
hours, the quarter-hours, and then the minutes
that have elapsed since the last quarter-hour. The
first hammer strikes the hours on the low-pitched
gong with one strike for each hour. Subsequently,
each quarter-hour is sounded as an alternating
double strike by two hammers on both the high-
and low-pitched gongs. Finally, the second hammer
strikes the high-pitched gong to count the number
of minutes that have passed since the last quar-
ter-hour.
At 12:59, for instance, the melody consists of 12
low sounds, 3 double high/low sounds, and 14
high sounds (totaling the maximum of 32 strikes).