HMS Clubmaster Diver automatic watch, 42 mm. Stainless steel and tortoiseshell acetate case. British green and genuine walnut dial. Hours, minutes, seconds and date window. Inner bidirectional bezel to check immersion time. Baton hands with white Superluminova® C1 luminescent inserts. Curved ultra-resistant K1 glass. Water-resistant to 200m / 20 ATM. Exclusive Briston NATO strap in British green nylon. Interchangeable without tools. Automatic NH35A calibre manufactured by Seiko