Audemars Piguet Royal Oak Offshore Diver Stainless Steel Grey Dial Men’s Watch 15720ST. Royal Oak Offshore Diver. The Audemars Piguet Royal Oak Offshore is accentuated by a 42mm stainless steel case and rotating inner bezel. In the center inlays a grey Mega Tapisserie dial with luminous white applied hour-markers and Royal Oak hands. Its functions includes a diving scale and zone from 60 to 15 minutes and comes on a grey rubber strap with a stainless steel pin buckle. Model: Royal Oak Offshore Diver. Case Material: Stainless Steel. Bracelet Material: Grey Rubber. Box & Papers: Original box, original papers.