Case Width: 41mm Lug Width: 20mm Strap Material: Leather and Silicone Crystal: Anti-Reflective Sapphire Crystal Dial Color: Blue with Green, Luminous Orange, Silver-Tone, and White Accents Clasp: 3pc Wire Strap Buckle Calendar Movement: 6S20 Luminous Hands and Markers Water Resistant: WR100 / 10 Bar / 333 ft