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Very excellent condition 41mm Marathon US Govt. GSAR purchased in April of 2020 and worn 25 times or so. Strap is unworn. All functions operate correctly. Tubes still glow as new. $855.00 net to me for watch on unworn strap in its original box with manual. I also have 6 extra brand new Marathon OEM shoulderless spring bars available for $6.00 per pair. They usually sell for $10.00 per pair from a dealer. See last photo.
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The Marathon GSAR Diver's Automatic (WW194006) is a military specification dive watch built to ISO 6425 standards with a tritium self-illumination dial. Designed for use by Search and Rescue (SAR) divers, and issued to the United States Military branches including the Marine Corps, the Marathon GSAR Diver's Automatic is a watch built to withstand the most extreme of conditions. The Diver's Automatic is also known as the Government Search and Rescue (GSAR) and is available with or without US Government dial. Introduced in 2006, it is one of the most popular Marathon watches on the market.

Marathon GSAR: Swiss made with Tritium illumination

The Marathon GSAR Diver's Automatic is made in La Chaux de Fonds Switzerland to guarantee the highest level of quality and accuracy in manufacturing.

The Diver's Automatic uses self-contained Tritium gas tubes to ensure constant visibility in low light situations. A gas tube is placed on each hour marker and hands and uses MaraGlo for the 12-hour bezel marker. Tritium tubes are self-illuminating gas tubes which contain an isotope of hydrogen, meaning they will not dull down in brightness like normal photo-luminescent paint which requires an external light source to create a glow.

The Marathon GSAR Diver's watch is water-resistant down to 30 ATM - 300 meters (1000 feet) underwater. Built from 316L surgical grade stainless steel, the watch is a high quality, purpose-built watch that will reliably accompany you on any adventure. It uses a scratch-resistant, sapphire glass crystal to ensure that the dial can be read even under direct sunlight, or deep underwater.


MIL-SPEC: Manufactured in accordance with US Government Specification. Issued and worn by troops in Iraq and Afghanistan.

TRITIUM GAS TUBES: Self-illuminated 24/7 tritium gas tubes for up to 25 years.

SEARCH & RESCUE: Designed for Search And Rescue missions.

SWISS MADE: Proudly handmade in La Chaux de Fonds, Switzerland since 1939.

Automatic movement (Self-winding): The movement that powers the watch is a Swiss-made 25 jewel ETA 2824-A2, which guarantees you a reliable and accurate timekeeping experience. The watch is a higher quality, specially adjusted version of one of Switzerland's best automatic movements. The 2824, the best known of the family of movements from Eta, is nearly 5mm thick and 25.6mm in diameter. Clearly, it's self-winding, with that oscillating weight spinning up a 38-hour power reserve. The balance runs at 28,800 bph (4Hz) and the movement hacks. It has 25-jeweled bearings. The regulator is ETA's own Etachron system. Interestingly, watchmakers argue that the 2824-when properly regulated, oiled and adjusted-can easily match movements from far smarter makers for accuracy. More practically, it can beat most of them for sheer robustness. Its heavy, brass plates will take a beating and still come up ticking. It's certainly been around long enough to demonstrate its tough credentials, with the first of the modern 2824-2 models coming off the bench in 1982. No wonder Marathon selected this movement to meet US and Canada's military requirements for a robust automatic dive rated watch!

NSN NUMBER: Nato Stock Number 6645-21-558-0133 engraved on the case back. Marathon's internal designation for the GSAR is WW194006.

This watch combines Military toughness with Swiss craftsmanship in a watch that will get the job done, and look good doing it for many years!

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