Audemars Piguet Caliber AP 3120

Manufacturer	Audemars Piguet
Caliber Number	3120, AP3120
Type	Automatic
Lignes	11 3/4”’
Diameter	26.6mm
Height	Unconfirmed
Jewels	40
Total Parts	280
Vibrations Per Hour	21,600 bph, 3Hz
Power Reserve	60 hours
Rotor Direction	Bi-directional
Hacking Seconds?	Yes
Functions	Hours, minutes, central seconds, date
Country of Manufacture	Switzerland
Known Models	Royal Oak Selfwinding (ref: 15454OR.GG.1259OR.03, 15454BC.GG.1259BC.03, 15454BA.GG.1259BA.02, 15452OR.ZZ.1258OR.02, 15452BC.ZZ.1258BC.01, 15451ST.ZZ.1256ST.03, 15451ST.ZZ.1256ST.02, 15451ST.ZZ.1256ST.01, 15451OR.ZZ.1256OR.03, 15451OR.ZZ.1256OR.02, 15451OR.ZZ.1256OR.01, 15451OR.YY.1256OR.01, 15451BA.ZZ.1256BA.01, 15450ST.OO.1256ST.03, 15450ST.OO.1256ST.02, 15450ST.OO.1256ST.01, 15450SR.OO.1256SR.01) / Royal Oak Offshore Diver (ref: 15710ST.OO.A002CA.01, 15710ST.OO.A010CA.01, 15710ST.OO.A027CA.01, 15711OI.OO.A006CA.01) / Jules Audemars Selfwinding (ref: 15170OR.OO.A809CR.01, 15171OR.ZZ.A809CR.01)

The Audemars Piguet caliber 3120 is a Swiss made automatic movement found in various AP models including the Royal Oak Selfwinding, Royal Oak Offshore, and Jules Audemars Selfwinding.

This movement is comprised of 280 components. The rotor is produced from a single block of 22K gold. Other features include:

• Stop balance when setting time.
• Oscillating weight with ceramic ball bearings.
• Bevels of the bridges are diamond graved.
• Inverted snailing on bridges.
• Balance spring with variable inertia blocks.

In Audemar Piguet’s own words:

“This exceptional selfwinding movement combines functionality and precision timekeeping with the highest standard of aesthetics. “

Additional Resources:

• View more Audemars Piguet calibers
• Audemars Piguet on Wikipedia