Audemars Piguet. An Oversized Stainless Steel Automatic Chronograph Wristwatch with DateSigned Audemars Piguet, Royal Oak Offshore, No. 4847, Movement No. 580'986, Case No. F14559, Circa 2006Cal. 2226/2840 automatic movement, 54 jewels, dark blue textured dial, luminous Arabic numerals, luminous hands, outer tachometer scale, magnified aperture for date, three silvered engine-turned subsidiary dials for 12 hour and 30 minute registers and constant seconds, oversized tonneau-shaped water-resistant-type case, octagonal bezel with eight screws, two round chronograph buttons in the band, screw-down crown, case back secured by eight screws, stainless steel Audemars Piguet deployant clasp, case, dial, and movement signed43mm diam.