Cartier Calibre de Cartier Rose Gold Watches. Watch has a 42mm 18K pink gold case, and an octagonal crown with a faceted sapphire. Features a silvered and partly snailed opaline dial with black transferred Roman numerals and hour markers, automatic winding caliber 1904-PS MC movement with calendar aperture at 3 o'clock and subsidiary second counter at 6 o'clock 18K pink gold. Water resistant to 30 meters. Reference number: W7100018.