The Royal Oak Offshore 26231 is a smaller-sized Offshore Chronograph with diamond-set bezel. The case measures 37mm, housing the self-winding caliber 2385 movement. The dial features the signature 'Tapisserie' pattern in 'Lady' version. Reference 26231ST.ZZ.D075CA.01 was added to the collection in 2018. It features a plum dial and matching rubber strap.