Patek Philippe Moon Phase Collection 18-Karat yellow gold and diamond timepiece. This 31mm watch's features are: mechanical manually wound movement, moos phases, seconds subdial, sapphire crystal case back, water resistant to 30 meters. This watch caseis set with 66diamonds, 0.43 total carat weight, with a guilloched silvery center and white mother of pearl dial - diamond markers and gold applied Breguet style numerals displayed on a gold "Calatrava" bracelet.