18kt white gold case with a blue leather strap. Fixed bezel with diamond set 18kt white gold. Diamond dial with black hands and diamond hour markers. Dial Type: Analog. Automatic movement. Scratch resistant sapphire crystal. Solid case back. Tonneau case shape, case size: 33 mm. Buckle clasp. Functions: hour, minute. Double Mystery D Series. Dress watch style. Watch label: Swiss Made. Pre-owned Franck Muller Double Mystery D Automatic Diamond Mens Watch 6850.