This replica Royal-Oak-Offshore 15720CN black is built around the 15720CN.OO.A002CA.01 reference, a 42mm diver rendered entirely in ceramic. The material choice transforms the Offshore from a stainless steel sport watch into something lighter, scratch-resistant, and visually distinct. Audemars Piguet introduced ceramic Offshore references to address buyers who wanted the signature octagonal design without the weight and surface vulnerability of metal cases.

Case & Movement Specs

• Case diameter: 42mm
• Case material: black ceramic
• Dial: black with luminous applied markers
• Bezel: ceramic octagonal with eight hexagonal screws
• Crystal: sapphire with anti-reflective treatment
• Strap: black rubber
• Movement: automatic
• Functions: hours, minutes, seconds, date

Ceramic cases weigh roughly 30% less than their steel equivalents at the same dimensions. That difference is immediately noticeable when you pick up the 15720CN next to a steel 15720ST. The material also resists scratches far better than brushed steel, keeping the case surfaces cleaner over extended wear.

Caliber Breakdown

The automatic movement provides time and date without additional complications, matching the diver-focused purpose of the 15720 reference family. The date window sits at 3 o’clock with a color-matched date disc that maintains the monochrome aesthetic. Crown operation follows the standard screw-down protocol for the Offshore diver series. For a steel alternative within the same reference family, compare this against the 44mm Forest Green steel diver. Both are accessible through the Offshore collection page.

How It Compares

The ceramic 15720CN sits at the intersection of material technology and sport watch design. Where steel Offshore references show brushed and polished surfaces, ceramic presents a uniform matte black texture that absorbs light rather than reflecting it. The visual result is a watch that looks smaller on wrist than its 42mm measurement, because the dark surface minimizes perceived volume. Paired with the rubber strap, total weight stays low enough for all-day wear without fatigue. If you prioritize lightweight construction and scratch resistance, this replica Royal-Oak-Offshore 15720CN black addresses both requirements in a single reference.