Patek Philippe: 5135G With Agent Servicing Receipt. The Patek Philippe Annual Calendar features a mechanical automatic movement; greyish colour dial, annual calendar complication with displays for the day and month by hands, while the date and moon phase are shown in apertures, center seconds hand, sapphire crystal, transparent case back. 18K white gold case 38mm by 51mm. Fitted with a brand new original Patek Philippe croco strap fitted with an original 18k white gold buckle. It's movement is composed of over 355 parts, which together power it's annual calendar and moon phase complications. New Original PP glossy wooden box can be purchased with additional cost.