Audermars Piguet Royal Oak Tourbillion "50th Anniversary" (Purple)

The Audemars Piguet Royal Oak Ref. 26660ST.OO.1356ST.01 marks a milestone in horological innovation, celebrating the 50th anniversary of the Royal Oak with a perfect blend of engineering mastery and timeless design. Known internally as RD#3, this model introduces the first-ever selfwinding flying tourbillon within a slender 37 mm stainless-steel case. Its plum “Petite Tapisserie” dial, razor-sharp finishing, and ultra-thin proportions reflect Audemars Piguet’s pursuit of technical excellence and aesthetic balance. Powered by the groundbreaking Calibre 2968, the 26660ST demonstrates how mechanical artistry can be seamlessly integrated into the unmistakable Royal Oak design language.

Specifications

Reference: 26660ST.OO.1356ST.01

Collection: Royal Oak “50th Anniversary” / RD#3

Case Material: Stainless steel

Case Diameter: 37 mm

Case Thickness: ~8.1 mm

Bezel: Octagonal stainless-steel bezel with exposed screws

Crystal: Scratch-resistant sapphire front and display back

Dial: Plum “Petite Tapisserie” pattern with white-gold applied hour markers and hands with luminescent coating

Hands: White-gold hands with luminous fill

Movement: Audemars Piguet Calibre 2968 automatic flying tourbillon
 • Frequency – 21,600 vph (3 Hz)
 • Power Reserve – ~50 hours
 • Functions – Hours, minutes, flying tourbillon

Bracelet: Integrated stainless-steel bracelet with AP folding clasp

Water Resistance: 50 m / 5 ATM