Audemars Piguet Royal oak Offshore a stainless steel chronograph wristwatch with date, circa 2010 dial: silvered tapisserie calibre: cal. 2326 automatic, 50 jewels movement number: 606030 case: stainless steel Royal oak, bezel and back secured by 8 screws case number: F31339 Closure: stainless steel Audemars Piguet folding clasp, dimensions 42 mm diameter signed: case, dial and movement accessories: Audemars Piguet presentation case the Audemars Piguet Royal oak Offshore, first introduced in 1993 and designed by Emmanuel Gueit. Distinguished by large case sizes and exaggerated designs it is an evolution of the original Royal oak, pioneered by the legendary Gerald Genta in 1972.