For Audemars Piguet Royal Oak Offshore 42mm AP Rubber Band 27mm Watchband Strap
It will fit your 42mm Audemars Piguet Royal Oak Offshore watch, which has 27mm lugs. 27mm AUDEMARS PIGUET ROYAL OAK OFFSHORE Rubber Band Strap. The strap at the strap is 27 mm and the buckle is 18 mm.