Code 11.59 26394OR.OO.D027KB.01 Blue Aventurine Dial 41mm

Description of the Watch

The Audemars Piguet Code 11.59 Perpetual Calendar Ref. 26394OR.OO.D027KB.01 is a standout in haute horlogerie marrying technical ingenuity with celestial beauty. Crafted in 18k rose gold and showcasing a mesmerizing blue aventurine dial, this 41 mm Perpetual Calendar is a refined statement of luxury and sophistication .

Overview

Unveiled as part of AP's modern Code 11.59 line introduced in 2019, this reference elevates the series with a full Perpetual Calendar complication. Its aventurine dial resembling a star-lit sky is both poetic and timeless, framing day, date, month, moon-phase, and week indications with elegance and precision .

Design and Craftsmanship

The 18k pink gold case features the signature floating lugs and an octagonal mid-case layered between round upper and lower sections. Glare-proofed sapphire crystals front and back offer clear views of the dial and movement. The deep-blue aventurine dial, with rose-gold hands and markers, recalls the night sky and is beautifully complemented by the polished bezel and satin-finished case surfaces .

Movement and Performance

At its heart lies the in-house Caliber 5134, a self-winding, ultra-thin Perpetual Calendar movement. Operating at 19,800 vph (2.75 Hz) with a 40-hour power reserve, and constructed with 374 parts and 38 jewels, the movement balances complexity and refinement visible through the sapphire-caseback .

Features and Complications

• Perpetual Calendar with day, date, month, leap year, and week indicators

• Moon-phase display laser-engraved on aventurine disc

• Thin profile (10.9 mm thickness) and 41 mm diameter deliver elegant wrist presence 

• Water resistance up to 20 m thanks to secure crown and case build

Specifications

Case

• Material: 18k rose gold

• Diameter: 41 mm

• Thickness: ~10.9 mm

• Crystal: Sapphire, glare-proofed front and back

Dial

• Color: blue aventurine (“star-lit sky”)

• Markers: Rose-gold applied indices

• Hands: Rose-gold baton hands

• Distinctive elements: Calendar subdials and moon phase at 6 o’clock, week numbers around minute track

Bracelet/Strap

• Material: Textured blue leather or rubber strap

• Clasp: Rose-gold folding buckle

• Adjustability: Secure comfort fit 

Movement

• Caliber: AP 5134 (automatic perpetual calendar)

• Certification: Haute horlogerie finish; detail-heavy decoration

• Power Reserve: ~40 hours at 19,800 vph

• Jewels/Parts: 38 jewels, 374 components