A new collection of Ladies' Moon Phases complicated watches on satin straps in the Calatrava Ladies' collection. This new collection replaces the Ref. 4858 in a slightly larger more contemporary size: 31mm (instead of previous 29 mm). The mother of pearl new redesigned dials add a feminine touch to the watch. Moon phases, seconds subdial Case set with 66 diamonds (~0.43 ct.) Dial with guilloched silvery center and white mother-of-pearl surround (yellow and white gold), with guilloched silvery center and black mother-of-pearl surround (white gold) Diamond hour markers and Breguet-style numerals Brushed pearly-white satin strap (yellow gold), brushed gray-brown or brushed dark blue (white gold) Sapphire crystal case back Water resistant to 30 m Yellow or white gold Case diameter: 31 mm