Audemars Piguet Royal Oak Perpetual Calendar “150ᵀᴴ Anniversary“ 26585XT.OO.1220XT.01
Size
41 mm
Edition
Limited edition of 150 pieces.

Overview

Titanium, 41 mm

The Audemars Piguet Royal Oak Perpetual Calendar "150th Anniversary", reference 26585XT.OO.1220XT.01, in titanium with a BMG (Bulk Metallic Glass) bezel and caseback frame, 41 mm across. Selfwinding Calibre 5135, a perpetual calendar; limited edition of 150 pieces.

The Audemars Piguet Royal Oak Perpetual Calendar "150th Anniversary", reference 26585XT.OO.1220XT.01, is cased in a titanium case middle with a bezel and caseback frame in BMG (Bulk Metallic Glass) and a screw-locked crown, 41 mm across and 9.9 mm high. Water resistance is rated to 20 m. The dial is sapphire, with blue counter surrounds, a matching inner bezel, 18-carat white gold round hour-markers and blue bathtub hands filled with luminescent material. The bracelet is integrated, combining BMG studs with titanium links, on an AP folding clasp.

The movement is Calibre 5135, a selfwinding calibre giving a perpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes. It is 29 mm across and 4.5 mm high, built from 374 parts holding 38 jewels, and runs at 2.75 Hz (19,800 vph) with a power reserve of 40 hours.

For collectors

This is a limited edition of 150 pieces, marking the case in a titanium middle with a bezel and caseback frame in BMG (Bulk Metallic Glass), and using Calibre 5135, which Audemars Piguet describes as this movement's final appearance in the Royal Oak Perpetual Calendar line.

Key details

Case materialTitanium
MovementCalibre 5135
CollectionRoyal Oak

Design and engineering

  • CaseTitanium case middle with a bezel and caseback frame in BMG (Bulk Metallic Glass) and a screw-locked crown, 41 mm across and 9.9 mm high. Water resistance is rated to 20 m.
  • DialSapphire, with blue counter surrounds, a matching inner bezel, 18-carat white gold round hour-markers and blue bathtub hands filled with luminescent material.
  • BraceletIntegrated, combining BMG studs with titanium links, on an AP folding clasp.

Calibre 5135

  • Selfwinding
  • Perpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes
  • 29 mm across, 4.5 mm high; 374 parts, 38 jewels
  • 2.75 Hz (19,800 vph)
  • Power reserve 40 h

The reference

Technical specifications

Royal Oak Perpetual Calendar “150ᵀᴴ Anniversary”
Reference26585XT.OO.1220XT.01
CollectionRoyal Oak
CalibreCalibre 5135
FunctionsPerpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes.
Case dimensions41 mm
Case materialTitanium
BraceletTitanium, AP folding clasp
EditionLimited edition of 150 pieces.

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Royal Oak Perpetual Calendar “150ᵀᴴ Anniversary” · Ref. 26585XT.OO.1220XT.01

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