MWC 300m Water Resistant Stainless Steel Tritium GTLS Navigator Watch (Automatic) - Ex Display Watch Reduced
SKU: NAV/AU/B/SL
These robust 300m water-resistant watches are specifically designed for marine, surface, and airborne navigation applications, built to meet U.S. MIL-PRF-46374G specifications. Each watch includes a 12-hour bezel, allowing for an intuitive method to track a second time zone. The ceramic bezel features high-visibility numerals, and the clear, easy-to-read dial remains legible even in challenging lighting conditions. Tritium GTLS (Gaseous Tritium Light Sources) provides significantly brighter illumination compared to conventional luminous materials, ensuring readability at all times.
Movement and Design
Powered by the high-quality NH35A Automatic movement, this watch is engineered to endure high G-forces and is water-resistant up to 30 ATM (1000 ft/300m). While it’s not a diving watch due to its dual time-zone bezel design, it maintains the same water resistance rating as our divers' models, featuring a screw-down crown and caseback. Unlike many other models, this timepiece is designed for high accuracy at altitudes up to 12,000m (40,000 ft) without requiring compensatory pressurization.
The watch case is constructed from durable stainless steel. The rotating outer bezel includes markers to easily display the time in two separate time zones.
Crystal
This watch features a military-grade sapphire crystal, offering superior scratch resistance with two layers of internal anti-reflective coating. The dial includes a Tritium warning symbol, indicating the presence of GTLS technology. Tritium, a radioactive hydrogen isotope, emits beta particles that do not penetrate skin, plastic, or glass. The total tritium quantity is well within the U.S. Nuclear Regulatory Commission's safety limit of 25 millicuries (10 CFR 30.15).
Dimensions and Specifications
- Water Resistance: 300m / 1000ft
- Movement: NH35A 24-Jewel Automatic
- Illumination: GTLS Tritium Light Sources
- Case Width (Excluding Crown): 40mm
- Case Width (Including Crown): 45mm
- Thickness: 14.4mm
- Bezel: Scratch-Resistant Ceramic
- Crystal Diameter: 30.5mm
- Crystal Type: Sapphire with Anti-Reflective Coating
- Lug-to-Lug: 48mm
- Crown: Screw-Down, 5.5mm
- Strap: 20mm NATO Webbing Strap
Sapphire Crystal Benefits
A question we often receive is, Why choose sapphire crystal over standard mineral glass? Synthetic sapphire offers unmatched durability and scratch resistance, ideal for military and security personnel, law enforcement, and those leading active outdoor lifestyles—representing over 70% of our customers. In incidents involving cracked crystals, over 90% typically involve mineral glass, even when hardened. Sapphire’s strength lies in its manufacturing process: post-production heat treatment removes internal stresses, increasing durability and resistance. The crystal is then finished with two layers of anti-reflective coating, enhancing clarity. Today, sapphire crystal is used in many high-end watches and even the latest iPhones, though it comes at a premium. This material's durability and clarity make it an ideal choice for those who require a resilient timepiece.