Ref. #25829PT.OO.0944PT.01

Royal Oak Openworked Perpetual calendar

Not for sale.

Selfwinding perpetual calendar watch indicating the day, date, moon phases, month and leap years. 950 platinum case, transparent dial, 950 platinum bracelet.

Case

950 platinum case, sapphire crystal and caseback

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

Sapphire dial with white indicators, blackened gold hands

Bracelet

950 platinum bracelet with AP folding clasp

mechanism

Powered by the natural movements of your wrist.

Selfwinding

Complications

Royal Oak Openworked Perpetual calendar

Specifications

Watch

Ref #25829PT.OO.0944PT.01

Case

950 platinum case, sapphire crystal and caseback

Case Width

39 mm

Water Resistance

20 m

Case Thickness

9.3 mm

Dial

Sapphire dial with white indicators, blackened gold hands.

Bracelet

950 platinum 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