The powerful aesthetics of the Royal Oak’s signature stainless steel case, octagonal bezel and integrated bracelet, matched with a very contemporary two-tone dial, with silvered “Grande Tapisserie” pattern and expanded black chronograph counters at 9 o’clock and 3 o’clock.

Ref #26331ST.OO.1220ST.03

Case

Stainless steel case, glareproofed sapphire crystal, screw-locked crown.

Case Size

41 mm

Water Resistance

50 m

Case Thickness

11 mm

Dial

Silver-toned dial with “Grande Tapisserie” pattern, black counters and extern zone, white gold applied hour-markers and Royal Oak hands with luminescent coating

Bracelet

Stainless steel bracelet with AP folding clasp.

Calibre

Selfwinding Calibre 2385

Total diameter

26.2 mm (11½ Lignes)

Frequency of balance wheel

3.00 Hz (21,600 vph)

Type of oscillating weight

Monobloc in 18-carat gold

Number of jewels

37

Calibre

Selfwinding Calibre 2385

Type of balance-spring stud-holder

Mobile stud

Power reserve

40 hours

Balance-spring type

Annular

Direction of automatic winding

Unidirectional (see recommendations underneath)

Number of parts

304

Functions

Chronograph, hours, minutes, small seconds and date.

Integrated Chronograph movement

Column wheel Chronograph mechanism