The 15305OR.OO.D088CR.01 is a smaller edition of the traditional Royal Oak openworked skeleton dial with the same innovative design that made the original so popular. The 15305OR.OO.D088CR.01 has an 18K rose gold case that is 39mm in diameter and 9.4mm thick with a glare-proof sapphire crystal, exhibition case back and a screw-locked crown. The openworked dial is slate gray with luminescent rose gold hour markers and hands. The 15305OR.OO.D088CR.01 is powered by the self-winding 3129 caliber which has center second functionality and has a power reserve of 60 hours. The case is paired with an 18-carat rose gold bracelet with an AP fold-over clasp. It has a water resistance of 50 meters (164 feet).