Ref. #25820ST.OO.0944ST.05

Royal Oak Perpetual Calendar

Not for sale.

Selfwinding perpetual calendar watch indicating the day, date, moon phases, month and leap years. Stainless steel case, blue dial, stainless steel bracelet.

Case

Stainless steel case, sapphire crystal and caseback

Case Width
39 MM
Case Thickness
9.3 MM
Water Resistance
20 M
Dial

Blue 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

mechanism

Powered by the natural movements of your wrist.

Selfwinding

Complications

Royal Oak Perpetual Calendar

Specifications

Watch

Ref #25820ST.OO.0944ST.05

Case

Stainless steel case, sapphire crystal and caseback

Case Width

39 mm

Water Resistance

20 m

Case Thickness

9.3 mm

Dial

Blue 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

Calibre

Calibre 2120 / 2802 Manufacture

Total diameter

12½ mm

Frequency of balance wheel

2,75 Hz (19'800 alternances/hour)

Type of oscillating weight

Support and weight segment in 21-carat gold

Number of jewels

38

Calibre

Calibre 2120 / 2802 Manufacture

Type of balance-spring stud-holder

Mobile stud

Power reserve

40 h

Balance-spring type

With Variable inertia blocks

Direction of automatic winding

Bidirectional

Number of parts

343

Functions

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