GR new Audemars Piguet Royal Oak Offshore 15407ST.OO.1220ST.01 men's mechanical watch features a Calibre 3132 integrated movement, with a diameter of 41mm and a thickness of 9.9mm. The deep gray dial is round in shape and made of a skeletonized design, complemented by luminous three-dimensional hour markers and Royal Oak hands. The crystal material is anti-reflective treated sapphire glass, while the crown is made of stainless steel with a screw-down design. The case back is transparent, featuring a glare-proof sapphire glass lens.