Royal Oak Selfwinding 37mm Ref 15551ST.ZZ.1356ST.05

Description of the Watch

The Audemars Piguet Royal Oak Selfwinding 37mm (Ref. 15551ST.ZZ.1356ST.05) epitomizes the fusion of timeless design and contemporary elegance. Introduced in 2022, this timepiece features a stainless steel case adorned with a bezel set with 40 brilliant-cut diamonds (~0.92 carats), encasing a "Bleu Nuit, Nuage 50" dial with the signature “Grande Tapisserie” pattern. Powered by the selfwinding Calibre 5900, it offers a 60-hour power reserve, ensuring both style and performance.

Overview

This 37mm Royal Oak model showcases Audemars Piguet's dedication to refined aesthetics and technical excellence. The stainless steel case and integrated bracelet exude a contemporary elegance, while the diamond-set bezel adds a touch of opulence. The "Bleu Nuit, Nuage 50" dial, characterized by its deep blue hue and intricate “Grande Tapisserie” pattern, offers a visually engaging experience. The watch is powered by the selfwinding Calibre 5900, a movement introduced in 2022, offering a 60-hour power reserve.

Design and Craftsmanship

The Royal Oak's signature octagonal bezel, secured with eight hexagonal screws, is rendered in stainless steel and adorned with 40 brilliant-cut diamonds, totaling approximately 0.92 carats. The glareproofed sapphire crystal and caseback provide durability and a clear view of the dial. The dial's "Grande Tapisserie" pattern adds depth and texture, while the luminescent coating on the white gold hands and hour markers ensures visibility in low-light conditions. The integrated stainless steel bracelet is secured with an AP folding clasp, providing both comfort and security.

Movement and Performance

At the heart of this timepiece lies the Audemars Piguet Calibre 5900, a selfwinding mechanical movement developed and manufactured in-house. Operating at a frequency of 4 Hz (28,800 vibrations per hour), the movement features 29 jewels and boasts a power reserve of approximately 60 hours. Its slim profile, at just 3.9 mm in thickness, contributes to the watch's sleek and comfortable wear.

Features and Complications

• Functions: Hours, minutes, center seconds, date

• Bezel: Fixed, octagonal bezel in stainless steel set with 40 brilliant-cut diamonds (~0.92 carats)

• Water Resistance: Water-resistant to 50 meters (165 feet)

• Crystal: Glareproofed sapphire crystal and caseback

• Bracelet: Integrated stainless steel bracelet with AP folding clasp

Specifications

Case

• Material: Stainless steel

• Diameter: 37 mm

• Thickness: 9.1 mm

• Water Resistance: 50 meters / 165 feet

• Crystal: Glareproofed sapphire crystal and caseback

Dial

• Color: “Bleu Nuit, Nuage 50” with “Grande Tapisserie” pattern

• Hour Markers: White gold applied hour-markers

• Hands: White gold Royal Oak hands with luminescent coating

Bracelet/Strap

• Material: Stainless steel

• Type: Integrated bracelet

• Clasp: AP folding clasp

Movement

• Caliber: Audemars Piguet Calibre 5900

• Mechanism: Selfwinding mechanical movement

• Power Reserve: Approximately 60 hours

• Frequency: 4 Hz (28,800 vibrations per hour)

• Components: 188 parts

• Jewels: 29

• Thickness: 3.9 mm