Patek Philippe borrows design aesthetics from the 40s with modern caliber functionality to produce the beautiful 5170G-010. The 5170G-010 case is round, made of white gold and 40mm in diameter with an exhibition case back and a sapphire crystal. It has a fixed bezel made of white gold and a winding crown. The dial is black with Arabic numeral hour markers, a 60-second, and 30-minute sub-dial and minute markers on the outer rim. The 5170G-010 is powered by the manually wound CH 29-535 PS caliber which has chronograph functionality and a power reserve of up to 65 hours. The case is paired with a black, alligator leather bracelet with fold-over closure. It has a water resistance of 30 meters (100 feet).