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  1. Royal Oak
  • Royal Oak Equation of time, Watch Reference 26603OR.OO.D092CR.01
  • Royal Oak Equation of time, Watch Reference 26603ST.OO.D002CR.01
Variations: Model 26603
  • Royal Oak Equation of time, Watch Reference 26603OR.OO.D092CR.01

    Equation of time

    Selfwinding equation of time watch with sunrise and sunset times and perpetual calendar with astronomic moon. 18-carat pink gold case, silvered dial, brown strap. Availability to be confirmed.

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      • Case Width 42.00 mm
      • Case Thickness 10.45 mm
      • Water Resistance 20 m


      18-carat pink gold case, glareproofed sapphire crystal and caseback, screw-locked crown
      Silver-toned dial with “Grande Tapisserie” pattern, pink gold applied hour-markers and Royal Oak hands with luminescent coating
      Hand-stitched “large square scale” brown alligator strap with 18-carat pink gold AP folding clasp
      Sunrise and sunset times, equation of time, perpetual calendar, astronomical moon, hours, minutes
      Movement thickness with module
      5.00 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
      Direction of automatic winding
      Type of oscillating weight
      Support and weight segment in 21-carat gold
      Number of jewels
      Power reserve
      40 h
      Number of parts


      • 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
      • Sunrise & Sunset times can be changed upon customer's request
      • Oscillating weight can be custom decorated upon customer's request

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