The Caliber 3120 was Audemars Piguet's workhorse in-house automatic movement, featuring 280 total components. The 22K rose gold engraved oscillating weight is mounted on ceramic ball bearings. Notable features include a variable inertia free-sprung balance, screwed mobile stud, diamond-graved bevelled bridges, inverted snailing and Geneva stripes on bridges, and perlage on the mainplate. Replaced by the Caliber 4302 in 2019.
Movement Type
Automatic
Jewel Count
40 jewels
Power Reserve
60h
Frequency
21,600 vph (6 Hz)
Diameter
26.6mm
Height
4.26mm
Display Type
Analog
Rotor Type
bidirectional
Winding
ceramic ball bearing
Shock Protection
Incabloc
BRAND
Audemars PiguetTYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
In-houseLAUNCH YEAR
2003CALIBER FAMILY
31xxCOUNTRY
SwitzerlandALSO KNOWN AS
