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    • The Marathon Swiss 41mm Steel Navigator w/ Date Automatic (SSNAV-D AUTO) is the first ever Steel Navigator to feature a self-winding automatic movement. Packed with Swiss-precision and reliability, the SSNAV-D Auto is developed for pilots and everyday adventurers. The watch represents the continued lineage of Marathon’s original Steel Navigator, developed in partnership with the Kelly Air Force Base in 1986.

      The 41mm Steel Navigator w/ Date Automatic (SSNAV-D Auto) is driven by a Swiss made 26 jewels Sellita SW200-1 movement, renowned for its precision and reliability. Equip with Incabloc Shock absorber for added protection against vibration and harsh impact. The case is built from 316L surgical-grade stainless steel with a screw-down crown and synthetic sapphire crystal, providing this timepiece with a water resistance rating up to 10ATM (100m/300ft), The case design features enhanced lug tapering, providing a comfortable fit and making the SSNAV-D Auto ideal for all-day wear.

      Thanks to its increase height, the 12 HR GMT bezels offers improved grip, allowing pilots to handle the bi-directional rotating bezel easily, even when wearing flight gloves.

      Atop the SSNAV-D Auto watch, safeguarding its dial, rests a scratch-resistant and exceptionally durable sapphire crystal. This feature empowers the timepiece to endure extreme fluctuations in air pressure, crucial for its deployment by military pilots navigating altitudes surpassing 35,000 feet.

      Visibility in low light conditions is at the top of its class thanks to the self-contained tritium gas tubes on the hour markers, and all hands. Tritium tubes are self-illuminating, containing an isotope of hydrogen that won't dull down over time like photo luminescent paint, meaning the watch will remain fully legible at all hours. The bezel also features inset-painted indices, enhancing the legibility of the markings.

      The Steel Navigator Series is meticulously crafted with advanced engineering tailored to meet the demands of contemporary pilots. Enhanced impact resistance and altitude tolerance, coupled with Swiss precision of the highest caliber, culminate in a timepiece that offers unrivalled reliability. With its ergonomic design ensuring utmost comfort during wear, this tool watch stands as a testament to excellence, earning its place among the elite gear of military professionals.


          • Movement: Swiss made, automatic Sellita SW200-1 with Incabloc® Shock Absorber
          • 316L surgical-grade stainless steel case 
          • Case finish: Parkerized  
          • Screw down caseback
          • Black dial with arabic numerals and index treated with tritium gas tubes
          • Hands treated with tritium gas tubes
          • 12 hours bidirectional bezel
          • Date window display within 4 & 5
          • Screw down crown 
          • Sapphire glass 
          • 20 mm black  BALLISTIC NYLON Strap
          • Case diameter: 41 x 11.5 mm
          • Lug to lug: 20 mm
          • Weight 85 grams
          • Water resistant up to 10 ATM (100 meters)
          • 2 year international manufacturer warranty plus one additional year offered by
        • Every Marathon watch is brand new, never worn, with original factory parts, and 100% authentic guaranteed.

          Every item is carefully inspected before shipping. is proud to offer FREE shipping on Marathon watches within the US and Canada.

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