Patek Philippe 18k Yellow Gold Power Reserve Moonphase Model Number 5054. The model number is 5054. The case is 18k yellow gold with smooth 18k yellow gold bezel. Featuring a white dial with power reserve indicator, moonphase, and seconds subsidiary register. This dial has black Roman numeral hour markers and black outer minute track. This Patek Philippe is accompanied by a generic strap and buckle. The case measures 35mm in diameter. The caseback opens displaying the beautiful Patek Philippe caliber 240/164. The inside of the caseback is stamped "PATEK PHILIPPE GENEVE SWISS 18K 750 PPCo 4086XXX 5054". Movement signed "TWENTY-NINE JEWELS PATEK PHILIPPE GENEVE SWISS 3112502 240/164". Movement bares the Geneve seal. 22k yellow gold rotor with Patek Philippe logo. The serial number of this Patek Philippe is 4086XXX. Total weight : 69.3g. Condition: (Very Good).