In 2012, the Royal Oak 15450 was unveiled, sporting a 37mm case, 2mm smaller than the previous 15300. Its counterpart, the 15400, released the same year, is 2mm larger. The self-winding caliber 3120 can be admired through the case back. The dial boasts AP's iconic 'Grande Tapisserie' design. To honor the 40th anniversary of the ladies Royal Oak, the 15454BC.GG.1259BC.01 was added to the collection. Featuring a new frosted finish, achieved using an ancient Florentine metalworking technique, this watch is truly special.