Audemars Piguet Oak Perpetual Calendar Blue grey dial Stainless Steel Watch 25820ST.OO.0944ST.04

Audemars Piguet Oak Perpetual Calendar Blue grey dial Stainless Steel Watch 25820ST.OO.0944ST.04

Specifications

Case Width 39.00 mm
Case Thickness 9.30 mm
Water Resistance 20 m

Case – Stainless steel case, sapphire crystal and caseback
Dial – Blue grey dial with “Grande Tapisserie” pattern, white gold applied hour-markers and Royal Oak hands with luminescent coating
Bracelet – Stainless steel bracelet with AP folding clasp
Reference – 25820ST.OO.0944ST.04

Functions
Perpetual calendar with day, date, moon phases, months, leap years, hours, minutes

Movement thickness with module
4.00 mm

Total diameter
12½ mm

Type of balance
With Variable inertia blocks

Frequency of balance wheel
2,75 (=19’800 alternances/hour) Hz

Type of balance-spring stud-holder
Mobile stud

Balance-spring type
Flat

Direction of automatic winding
Bidirectional

Type of oscillating weight
Support and weight segment in 21-carat gold

Number of jewels
38

Power reserve
40 h

Number of parts
343

specificities

Extra-thin movement
Suspended barrel
Shake of the oscillating weight garanteed thanks to annular ring running on four jewels. Manual finishing of the bridges (polished bevels, satinbrushed edges, Perlage on the recesses)
Hand crafted decorative engravings on oscillating weight componants
Moonphase made with Physical Vapor Deposited metal onto sapphire
Oscillating weight can be custom decorated upon customer’s request