
The Audemars Piguet Royal Oak Offshore Diver is a professional sports watch designed for underwater exploration. Featuring a 42mm stainless steel case, 300-meter water resistance, a built-in unidirectional rotating dive bezel, and the Caliber 4308 movement, it combines classic aesthetics with diving performance. Introduced in 2010, it was upgraded to a modern 42mm specification in 2021, and further updated in 2026 with the Caliber 4308 movement and a replaceable strap system.
Key Parameters and Design
Item | Specifications
Case | 42mm stainless steel / ceramic / titanium, octagonal bezel + exposed screws, double screw-down crown (10 o’clock for inner bezel control, 3 o’clock for time adjustment)
Bezel | Built-in unidirectional rotating dive bezel with blue/orange/white markings for safety stop zones, compliant with ISO 6425 standard
Dial | Iconic “Mega Tapisserie” pattern, luminous hour markers and hands for clear readability
Movement | Caliber 4308 automatic winding (2026 new model) / Caliber 3120 (classic model), 60-hour power reserve, hours, minutes, seconds, date
Water Resistance | 300 meters, suitable for professional diving
Strap | Replaceable rubber strap (new model), stainless steel pin buckle, some models with matching colored rubber straps
Classic Models and Color Schemes
15720ST.OO.A010CA.01 (2026 New Model): Stainless steel case, pink and black gradient Mega Tapisserie dial, white rubber strap, Caliber 4308 movement, 14.2 mm thick.
15720ST.OO.A355CA.01 (2026 New Model): Stainless steel case, turquoise dial, matching rubber strap, combining chronograph and diving functions. 15710ST.OO.A085CA.01 (Classic Model): Stainless steel case, beige dial with blue safety zone, beige rubber strap, Caliber 3120 movement.
15711OI.OO.A006CA.01 (Limited Edition): Titanium case, gray dial, orange safety zone, limited edition, high collector’s value.
Key Highlights
Professional Diving Features: Built-in unidirectional rotating bezel + double-locking crown for precise dive timekeeping; 300-meter water resistance and luminous design, suitable for deep-sea environments.
Aesthetic Continuity and Innovation: Octagonal bezel, exposed screws, and oversized checkered dial continue the Royal Oak heritage; large case size (42 mm) enhances the sporty feel.
Materials and Wearability: Stainless steel/ceramic/titanium materials combine durability and quality; interchangeable rubber straps enhance wearing comfort and style versatility.
Movement Upgrade: The 2026 new model features the Caliber 4308 movement, optimizing adjustment stability, and a 60-hour power reserve to meet daily needs. cheap luxury watches
Buying Advice
Daily Commute: Prioritize the stainless steel model (e.g., 15720ST blue dial), versatile and retains value well, with strong liquidity in the secondary market.
Professional Diving: The ceramic bezel model is more wear-resistant; the black ceramic + black dial is understated and durable, suitable for frequent underwater activities.
Collecting/Investment: Consider limited editions (e.g., 15711OI titanium) or rainbow bezel models, which are highly rare and have significant appreciation potential. http://www.moon-watch.co

