18kt rose gold case with a black leather strap. Fixed 18kt rose gold bezel. Silvery white dial with rose gold hands and index hour markers. An Arabic numeral appears at the 12 o'clock position. Minute markers around the outer rim. Dial Type: Analog. Annual calendar. Four sub-dials displaying: day of the week, date, month and moonphase. Automatic movement with a 42 hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Case diameter: 40 mm. Case thickness: 9.55 mm. Round case shape. Band width: 20 mm. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: hour, minute, annual calendar, moonphase. Luxury watch style. Montblanc Heritage Chronometrie Quantieme Annuel Automatic 18kt Rose Gold Black Leather Men's Watch 112535.