Model: Ulysse Nardin Hourstriker. Case Material: White Platinum. Strap Material: Black Leather. Fixed Bezel: White Platinum. Dial Color: Black. Hands: Silver-toned. Markers: Arabic hour markers, Minute markers around the outer rim. Dial Type: Analog. Movement: Automatic (Calibre UN-610). Functions include Hour and Minute indication, Hour repeater function, and a mechanical striking mechanism that audibly chimes the hours. Sapphire crystal for scratch resistance. Deployment clasp closure system. Water resistant to 30 meters / 100 feet depth.