While the outgoing caliber 4130 had been quietly updated over the Replica audemars-piguet watches years it was still a 23-year-old repliky bvlgari hodinky movement in need of Rolex's latest technology. Among other technical upgrades Rolex repliky hublot hodinky has reduced the number of components in the new caliber 4131 added its more efficient Chronergy escapement and added more ball bearings to the rotor. The Daytona still has a 72-hour power reserve.