Clubmaster Diver Pro GMT - Navy Blue Clubmaster Diver Pro GMT automatic watch, 44 mm. Stainless steel and tortoiseshell acetate case. Navy blue dial with glossy finish. Hours, minutes, centre seconds, GMT and date window at 3 o'clock. Unidirectional rotating notched sapphire bezel with AM/PM indication in natural Superluminova®. Polished steel "arrow" hands with natural Superluminova® inserts. Ultra-resistant sapphire crystal - 3.3 mm thick. Screw-down crown engraved in polished steel at 4 o'clock. Water-resistant to 300m / 30 ATM. Exclusive Briston interchangeable strap in navy blue nylon. Second navy blue Velcro® strap. Swiss automatic movement calibre SW330-1.