Audemars Piguet ROYAL OAK DOUBLE BALANCE WHEEL OPENWORKED-Ref. 15407ST.OO.1220ST.01
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The Royal Oak Double Balance wheel Openworked tackles these stabilising issues by fixing a second balance wheel and balance-spring assembly on the same axis. The new patented geometry involves a very complex manufacturing procedure, but the payoff is huge: greatly improved precision and stability.
CASE
Stainless steel case, glareproofed sapphire crystal and caseback, screw-locked crown, water-resistant to 50 m.
- SIZE41 mm
- THICKNESS9.9 mm
- WATER RESISTANCE50 m
DIAL
Slate grey openworked dial, pink gold applied hour-markers and Royal Oak hands with luminescent coating.
BRACELET
Stainless steel bracelet with AP folding clasp.
CALIBRE 3132
- NUMBER OF JEWELS38
- MECHANISMSelfwinding
- POWER RESERVE45 h
- TOTAL DIAMETER26.59 mm
- NUMBER OF PARTS245
- FREQUENCY3 hz 21,600 vph
- THICKNESS4.4 mm
Package: original box with documents/certificate and international warranty