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SKU: 100AT/24/SS/SL/22

The MWC "Depthmaster" range of Military Divers models represents MWC's latest heavy-duty collection. These watches are extremely robust, featuring a sapphire crystal and a 100atm water resistance rating, making them suitable for diving with mixed gases at extreme depths. They also come with a wider 24mm strap (most military diver watches use a 20mm strap) and a non-scratch ceramic bezel that is easier to grip in very cold and icy conditions. This model is equipped with tritium GTLS tubes for maximum nighttime and low-light performance. The Depthmaster range is specifically designed for professional divers working under challenging conditions.

Key Features

Helium Escape Valve: All MWC 100ATM models are fitted with a helium escape valve. Helium molecules are among the smallest, allowing them to penetrate the watch seals even when other gases and water cannot. Saturation divers, who spend long periods at great depths with high pressure, are the primary users of watches with helium escape valves. The helium molecules can build up inside the watch, creating pressure that can damage the watch or blow out the crystal or crown. The helium escape valve automatically releases the helium during decompression, preventing such issues.

Importance of Helium in Deep Diving: Helium is used in deep-sea mixed gas diving because it does not cause nitrogen narcosis, unlike nitrogen. Divers in pressurized environments with an oxygen/helium mix need the gas to be removed safely during decompression to avoid injuries or damage to the watch.

Specifications

  • Movement: Swiss Ronda 715li Quartz with 10-Year Battery Life and hacking function for synchronization.
  • Water Resistance: 100ATM / 3,280ft / 1000M
  • Crown: Screw-down locking
  • Helium Escape Valve: Yes
  • Dimensions:
    • Width: Including Crown 47mm (Excluding Crown 44mm)
    • Thickness: 18mm
    • Crystal Diameter: 31mm
    • Lug to Lug: 48mm
    • Weight: 140g
  • Bezel: Unidirectional non-reflective with ceramic insert
  • Crystal Type: Sapphire with Anti-Reflective Coating*
  • Case: 316L Stainless Steel
  • Illumination: GTLS Tritium on markers and hands, Luminova on the bezel
  • Strap: 24mm NATO Webbing Strap

Benefits of Sapphire Crystal

Synthetic sapphire is the best material for watch crystals due to its strength and shatter and scratch resistance. These characteristics make it highly appealing to military and security personnel, police officers, and those who lead active outdoor lifestyles. These groups account for over 70% of our customers. Over 90% of cracked crystal incidents involve watches with mineral glass crystals, even though we use hardened mineral crystals, which do not match sapphire for durability. Sapphire crystals are heat-treated to remove internal stresses, enhancing their strength, and are made with two layers of anti-reflective coating. While sapphire crystal is more expensive, it is typically fitted to higher-end watches and is now used in the latest iPhone models.

MWC "Depthmaster" 100atm / 3,280ft / 1000m Water Resistant Military Divers Watch in a Stainless Steel Case with GTLS and Helium Valve (10 Year Battery Life)

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