Royal Oak Perpetual Calendar Openworked

Description 

The Audemars Piguet Royal Oak Perpetual Calendar Openworked (Ref. 26585CE.OO.1225CE.01) is a masterpiece that seamlessly blends avant-garde aesthetics with horological excellence, epitomizing luxury in men's timepieces.

Overview

Introduced in 2019, this exceptional watch showcases Audemars Piguet's dedication to innovation and tradition. The openworked design offers a captivating view of the intricate mechanics, highlighting the brand's superior craftsmanship.

Design and Craftsmanship

The watch features a 41mm black ceramic case, renowned for its durability and scratch resistance. The iconic octagonal bezel, secured with eight hexagonal screws, pays homage to the classic Royal Oak design. The openworked sapphire dial reveals the movement's pink gold components, creating a striking contrast against the black ceramic. The meticulous finishing of each component underscores Audemars Piguet's commitment to detail. 

Movement and Performance

At its heart lies the self-winding Caliber 5135, an evolution of the Caliber 5134, specifically designed for the openworked layout. This movement ensures precise timekeeping and the seamless operation of the perpetual calendar functions, requiring no manual correction until 2100. The transparent sapphire dial allows enthusiasts to admire the movement's complexity and the meticulous skeletonization. 

Features and Complications

The perpetual calendar complication displays the day, date, month, and astronomical moon, automatically accounting for leap years. The moon phase indicator, set against a starry backdrop, adds a poetic touch to the timepiece. Despite its complexity, the dial remains legible, with white gold applied hour markers and Royal Oak hands with luminescent coating. 

Specifications

Case

• Material: Black ceramic
• Diameter: 41mm
• Thickness: 9.9mm
• Finish: Satin-brushed and polished surfaces

Dial

• Type: Crystal Sapphire Crystal
• Color : Black
• Markers: White gold applied hour markers
• Hands: Royal Oak hands with luminescent coating

Bracelet/Strap

• Material: Black ceramic
• Width: Tapering design for comfort
• Clasp Type: Titanium folding clasp

Movement

• Caliber: 5135
• Power Reserve: 40 hours
• Frequency: 2.75 Hz (19,800 vibrations/hour)
• Jewels: 38