Patek Philippe Calatrava 31mm Mechanical White Dial Ladies Watch 7119G-010. 18kt white gold case with a black leather strap. Fixed hobnail pattern bezel. White dial with black-tone hands and Arabic numeral hour markers. Mechanical movement. Scratch resistant sapphire crystal. Skeleton case back. Case diameter: 31 mm. Round case shape. Water resistant at 30 meters / 100 feet. Functions: hour, minute, small second.