CALIBRE
2120/2800
MODEL 5554 (25554)
In 1984, when Audemars Piguet fitted its
Royal Oak model with the calibre 2120/2800
movement for the first time, the company’s
watchmakers combined two legendary
features: the unique design created by Gérald
Genta and introduced in 1972 and the world’s
thinnest selfwinding perpetual calendar with
a central rotor, first introduced in 1978.
During the 10 years covered by our investigation,
1,630 Royal Oak perpetual calendars were put
into production. Of the 10 different models,
six references were made in fewer than five
examples. The initial version, reference 5554,
was made in only 279 examples, most of
which were cased in yellow gold and only
one of which was cased in platinum.
DOCUMENTED EXAMPLES
279
INDICATIONS
Perpetual calendar: days,
dates, months hands, age
and phases of the moon.
Hours, minutes.
PRODUCTION YEARS
1984-1991
SALES
1985-1993
MATERIALS
Yellow gold (229), steel
(49), platinum (1)
Royal Oak Perpetual Calendar, prototype of
model 25554. Inv. 455.
2016 | WRISTWATCH
105