Diameter: 43mm - Crystal: Hardened mineral crystal (550-650 Vickers) - Water Resistance: 10 ATM water resistance tested - Bezel: Uni-directional - Movement: Ronda 515 - Case Material: CARBONOX - Screw on caseback - Crown: Stainless steel protected crown - Band: 23mm PU strap - Dial/Figures: Black/White - 4 LLT on dial/2 LLT on H/M hands - Constant night visibility for up to 25 years - Green and Orange Luminox Light Technology (LLT): (see specification tab)