After the introduction of the Audemars Piguet Royal Oak Offshore in 1993, more than 120 references of the 42 mm watch have been launched in various materials such as stainless steel, titanium, gold and platinum.
42 mm! At the time being this was a real huge timepiece. It even looked enormous on the wrist.
Of course today we know, that the Royal Oak Offshore was a trendsetter …

For the 25th anniversary, further to the re-edition of the original Royal Oak Offshore of 1993, Audemars Piguet introduces a new special series available in either stainless steel or 18-carat pink gold, each one limited to 50 pieces. The latter are inspired by the previous Royal Oak Offshore Tourbillon Chronograph (Ref. 26388PO & Ref. 26288OR), with an entirely redesigned movement, developed to celebrate the 25th anniversary of the Royal Oak Offshore collection. Featuring the combination of materials that is often presented on Royal Oak Offshore models, the crown and pushpieces are now crafted in ceramic instead of metal and rubber.
TECHNICAL SPECIFICATIONS of the the re-edition of the original Royal Oak Offshore of 1993
REFERENCE: 26237ST.OO.1000ST.01
MOVEMENT
Selfwinding Calibre 3126/3840
Total diameter 29.92 mm (13 ¼ lignes)
Total thickness 7.16 mm
Number of jewels 59
Number of parts 365
Minimal guaranteed power reserve 50h
Frequency of balance wheel (Hz) 3 Hz (= 21,600 A /h)
CASE
42 mm stainless steel case, glareproofed sapphire crystal, caseback engraved with the “Royal Oak Offshore” logo in the centre and the word “AUTOMATIC”, blue rubber-clad pushpieces and screw-locked crown, water-resistant to 100 m
DIAL
Blue dial with “Petite Tapisserie” pattern, blue counters, white gold applied hour-markers and Royal Oak hands with luminescent coating, blue inner bezel
BRACELET
Stainless steel bracelet with AP folding clasp
FUNCTIONS
Chronograph, hours, minutes, small seconds and date
TECHNICAL SPECIFICATIONS the new Royal Oak Offshore Tourbillon Chronograph in steel
REFERENCE: 26421ST.OO.A002CA.01
MOVEMENT
Hand-wound Calibre 2947
Total diameter 39.78 mm (17 ½ lignes)
Total thickness 11.60 mm
Number of jewels 30
Number of parts 353
Minimal guaranteed power reserve 173h
Frequency of balance wheel (Hz) 3 Hz (= 21,600 A /h)
CASE
45 mm stainless steel case, glareproofed sapphire crystal and caseback, stainless steel bezel, black ceramic screw-locked crown and pushpieces, sandblasted titanium pushpiece guards, water-resistant to 100m
DIAL
Black dial, white gold hour-markers with luminescent coating
BRACELET
Black rubber strap with stainless steel pin buckle
FUNCTIONS
Tourbillon, chronograph, 30-minute counter, seconds counter, hours and minutes
TECHNICAL SPECIFICATIONS the new Royal Oak Offshore Tourbillon Chronograph in 18 carat pink gold
REFERENCE: 26421OR.OO.A002CA.01
MOVEMENT
Hand-wound Calibre 2947
Total diameter 39.78 mm (17 ½ lignes)
Total thickness 11.60 mm
Number of jewels 30
Number of parts 353
Minimal guaranteed power reserve 173h
Frequency of balance wheel (Hz) 3 Hz (= 21,600 A /h)
CASE
45 mm 18-carat pink gold case, glareproofed sapphire crystal and caseback, pink gold bezel, black ceramic screw-locked crown and pushpieces, sandblasted pink gold pushpiece guards, water-resistant to 100m
DIAL
Black dial, pink gold hour-markers with luminescent coating
BRACELET
Black rubber strap with 18-carat pink gold pin buckle
FUNCTIONS
Tourbillon, chronograph, 30-minute counter, seconds counter, hours and minutes