Ref. #26574BA.OO.1220BA.01

Royal Oak PERPETUAL CALENDAR

The Royal Oak Perpetual Calendar combines yellow gold with the most classic complication in all of watchmaking. Day, date, month, astronomical moon, with the week of the year displayed on the dial’s outer chapter ring and the essential leap year indication hold pride of place on the “Grande Tapisserie” decorated dial.

Change Boutique

Get customized gift recommendations exclusively for your city

Choose Boutique

Case

18-carat yellow gold case, glareproofed sapphire crystal and caseback, screw-locked crown, water-resistant to 20 m.

Case Width
41 MM
Case Thickness
9.5 MM
Water Resistance
20 M
Dial

Blue dial with “Grande Tapisserie” pattern, yellow gold applied hour-markers and Royal Oak hands with luminescent coating, blue inner bezel.

Bracelet

18-carat yellow gold bracelet with AP folding clasp.

The Return To Yellow Gold

mechanism

Powered by the natural movements of your wrist.

Selfwinding

complications

Complications

Royal Oak PERPETUAL CALENDAR

Specifications

Watch

Ref #26574BA.OO.1220BA.01


Case

18-carat yellow gold case, glareproofed sapphire crystal and caseback, screw-locked crown, water-resistant to 20 m.

Case Width

41 mm

Water Resistance

20 m

Case Thickness

9.5 mm

Dial

Blue dial with “Grande Tapisserie” pattern, yellow gold applied hour-markers and Royal Oak hands with luminescent coating, blue inner bezel.

Bracelet

18-carat yellow gold bracelet with AP folding clasp.

Watch Specifications
Case

18-carat yellow gold case, glareproofed sapphire crystal and caseback, screw-locked crown, water-resistant to 20 m.

Case Width

41 mm

Case Thickness

9.5 mm

Dial

Blue dial with “Grande Tapisserie” pattern, yellow gold applied hour-markers and Royal Oak hands with luminescent coating, blue inner bezel.

Bracelet

18-carat yellow gold bracelet with AP folding clasp.

Water Resistance

20 m

Calibre

Manufacture 5134

Total diameter

29.00 mm

Frequency of balance wheel

2.75 Hz (19,800 vibrations/hour)

Number of jewels

38

Calibre

Manufacture 5134

Type of balance-spring stud-holder

Mobile stud-holder

Power reserve

40 h

Balance-spring type

Balance with variable inertia blocks

Number of parts

374

Functions

Perpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes

Manufacture 5134
Manufacture 5134, front

Front

Manufacture 5134, back

Back

Calibre

Manufacture 5134

Total diameter

29.00 mm

Balance-spring type

Balance with variable inertia blocks

Type of balance-spring stud-holder

Mobile stud-holder

Frequency of balance wheel

2.75 Hz Hz

Type of balance-spring stud-holder

Mobile stud-holder

Power reserve

40 h

Number of parts

374

Number of jewels

38

Functions

Perpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes

  • Extra-thin movement
  • Suspended barrel
  • The oscillating weight is guided by a peripheral ring rolling on four ruby runners, which reduces friction and wear to the minimum possible
  • Moon phase indicator, laser microstructured, laid on aventurine
  • Moon phase astronomical indicator requiring correction every 125 years and 317 days
  • Manual finishing on components
  • Oscillating weight can be custom decorated upon customer’s request