Audemars Piguet Royal Oak Offshore Selfwinding Chronograph vs Audemars Piguet Royal Oak Offshore Diver

Side-by-side at a glance. Click a watch above to open the full reference page.

	Audemars Piguet 26238ST.OO.2000ST.01	Audemars Piguet 15710ST.OO.A002CA.02
Model	Royal Oak Offshore Selfwinding Chronograph	Royal Oak Offshore Diver
Caliber	AP Cal. 4404 -- in-house automatic flyback chronograph, column-wheel, vertical clutch, 28,800bph, 70h PR, 381 parts; used in the 2021 Royal Oak Offshore Selfwinding Chronograph relaunch	AP Cal. 3120 -- in-house automatic, 21,600bph, 60h PR, 40j; used in Royal Oak Offshore and Royal Oak 41mm; AP-decorated with perlage and Cotes de Geneve
Case size	42mm	42mm
Lug-to-lug	n/a	48.5mm
Years produced	2021–present	2016–2021
Brand tier	top-luxury	top-luxury
Era	modern	modern
Movement tier	Unclassified movement	Unclassified movement
Market median (excellent / full-set)	n/a	n/a
Typical range	n/a	n/a
Confidence	low	low
Categories	chronograph, sport, integrated-bracelet	dive, sport, integrated-bracelet
Editorial	n/a	yes
Typical price (2026)	n/a	$14,000 – $22,000
Collector note	n/a	best value: Offshore at 42mm is the most wearable size in the line and the entry point for ROO collectors watching secondary prices.