100% Swiss Made Ultra scratch resistant anti-reflex sapphire crystal Body and strap clasp made of durable CARBONOX ™ carbon fiber composite material Swiss movement RONDA 515 HF6 Lug width 24mm Quartz Movement Hour, minute, second and date display stopwatch unidirectional counterclockwise rotating bezel Housing made of carbon-reinforced plastic Black dial black bracelet polyurethane buckle screwed caseback Case diameter 46 mm Case thickness 13 mm Waterproof up to 200 m Operating time: 5 years Weight 72 g