MWC “Submarine / Naval Crew Divers Watch” 500m (1,650ft) Water Resistant Dual Time Zone Military Watch in a Stainless Steel Case with GTLS and Helium Valve

Both of these models were designed to be robust and the shatter and scratch-resistant sapphire crystal make them significantly more durable than many other divers watches. These watches are both flexible and multipurpose enabling them to be deployed in a wide variety of different applications, for example, they are suitable not just for use onboard vessels but for deep diving with mixed gases and have a 500 m (1,650ft) water resistance rating, they also have a wide 24 mm strap and a non-scratch ceramic bezel specifically designed to be easy to grip in cold and icy conditions.