Citizen Eco-Drive Promaster Professional Diver is used for mixed gas diving with its 6mm non-reflective curved crystal, ratcheted elapsed-time bezel, screw-back case & screw-down crown,and reinforced urethane band and extender, with a carrying case for the wetsuit strap extension. Crafted in stainless steel with luminous accents , and water resistant up to 300 metres.
ISO Diver Certified
One Way Bezel
Screw lock crown
6 months power reserve
Low charge indicator
Anti-Reflective Mineral Crystal
Impact and shatter resistant - anti-reflective coating deflects light