Diameter: 44mm - Crystal: Hardened mineral - Water Resistance: 100 meters 10 ATM 330 feet individually tested - Movement: Ronda 515 HH6 - Bezel: CARBONOX unidirectional rotating bezel with Super-Luminova at 12H - Case Material: CARBONOX - Case Back: 316L stainless steel screw in - Crown: IP Black plated 316L stainless steel Double-Security Gasket - Dial|Figures: Grey|Black - Strap: Gray webbing - Constant glow for up to 25 years in any light condition - Swiss made