Type of mechanism: . Display: . Material Of Case: . Colour Of Case: . Material Of Bracelet: METAL. Colour Of Bracelet: . Dial Colour:BLUE. Glass type: . Clousure: . Water resistence: . Diameter dial: 53/17/140. Special Functions:Category S3- The Rise-System Ventilation System Double-Sycle-Protection Anti-Protection Antiñazos- Impact Protection. The Silicone Silicone strap prevents the glasses from sliding in the helmet or head garment. 100% UV protection. Compatible with the most popular helmets on the planet.