Released several years ago, the Audemars Piguet Royal Oak Offshore Chronograph 44 ref. 26401RO.OO.A002CA.01 in 18K rose gold quickly became one of the hottest rose gold watches amongst AP lovers and anyone else that wanted to own one of the 'Big Boy' watches from Audemars Piguet. Fitted with a larger and more robust case than the original Royal Oak Offshore Chronograph line, the AP ROO Chrono ref. 26401RO measures 44 mm in diameter and 14.12 mm in thickness.