MARATHON is an international supplier of Military Watches. Established in 1939, MARATHON supplies commercial, government and military clients around the world.  MARATHON'S Swiss manufacturing plant gives the company full control of production, export and distribution of its highest quality timing instruments.  MARATHON are award winning suppliers to the military with a Bronze Medal from the U.S. Department of Defense.  
Marathon has a vast range of models and variants covering basic general service watches up to my personal favorite which is a Chronograph with a 300m water resistance rating. This is a really nice watch as illustrated below with a very high spec. The watch is priced at $2961.30 and appears at this link

The Movement is 7750 ETA Valjoux Automatic (Self Winding) 25 jewel minimum Swiss Made Movement. Movement has “Date & Day” display with “Rapid Date and Day Correction”. Chronograph has 1/5 second (100th minute) timing. Movement is non-magnetic and has minimum 36 hour running time.
Case construction allows for 300M/1000ft water resistance by using Screw-Down Crown and Screw-Down Side pushers. Revolving external bezel is calibrated from 0 to 60 in white on black background. The case diameter is 44.5mm and high turning bezel. The Dials measure 27.7mm and utilize Tritium vials for luminescence. The Crystal is sapphire - 2.8mm thick x 30.50mm diameter sitting in a Case made of 316L stainless steel. Case diameter is approximately 46.0mm Bezel diameter is 41.0mm, Case Height is almost 14.0 Water resistance depth rating is 30 ATM . If you want a rugged watch for multi use I reckon this is a serious contender.



Marathon also make other military watches the most comon is the navigator which is standard infantry issue. Normally they turn up in a brown cardboard box carrying the markings below although there are lots of variants.


This watch has a 12 Hour GMT bezel. Quartz movement, hacking. Tritium gas-tubeluminescence. User serviceable battery. Composite case and acrylic crystal. Nylon issue strap. Water resistant to 6 ATM. 42mm X 11mm x
20mm lug width.

Below is the current incarnation of the Navigator's Wristwatch.  It follows a long line of so called Navigator's watches from Marathon.  The first thing that people notice is the composite/fiberglass case of this watch.  Many inquire why this is not steel but quite simply, today's composite materials are lighter, stronger and easier to mold than steel.  These watches were never designed to make a fashion statement.  They were designed for one purpose and one purpose only, and that is to provide a rugged and functional timepiece for military personnel and they fulfill that role perfectly.  One wearing is all it takes to understand the beauty of the space age superstructure of this watch.  It's light and after a moment or two, the wearer forgets it is even being worn. I personally prefer a steel watch but for many people these are the ideal military timepiece.


Despite it's no nonsense and strict utilitarian approach to design, the watch still looks elegant because of an all black construction.  As a milwatch collector, I find it quite striking in its own way.
Many will decry its quartz movement.  Once again, this watch was never built for the civilian consumer.  This is a watch that was built for a service life of 5 to 10 years, after which time the watch could be tossed out and replaced.  Not every one is going to put the rigorous demand on this watch that it was designed for.  Quite conceivably, it could last a lifetime with a modicum of nurturing and care although the tritium GTLS tubes will deteriorate and fade after 10 years.
  • Intended Use: High altitude, Pilot/parachute - Law enforcement
  • Bi-Directional Time Zone Ring
  • Analogue dial with 2 time scale
  • Date between the 4 and 5 o'clock position
  • Water resistant to 6 atm. atmospheres
  • Stop Second (hack) high torque movement
  • Fibreshell high impact waterpoof and dustproof case with stainless steel engraved back. Hesalite Crystal forgives excessive external pressure changes.
  • Case size 1 11/16 inch or 42.8625mm 
  • Black face features both 12- and 24-hour dials, with luminous hands and hour markings, white numerals and a sweep second hand. Luminous Features are indicated by self lighting GTLS tubes.

There is a first rate review of the Marathon GSAR and TSAR below. 
Both of these are great watches and having owned numerous Marathon watches I can totally recommend them.

Marathon Alternatives:
Not a lot really for the chronograph because it has few competitors that I can see due to its unique mix of features but Traser, MWC and Luminox make a lot of Tritium models for various roles.  The closest to the Marathon is maybe a Traser P6600 see

Another option is the Luminox which is similar in spec see
or perhaps a current MWC Self  Luminous Special Forces Divers watch of which there are links to two variants below  or  
If you think you have been offered a Fake Marathon the companies contact details are:

Phone: (800) 822-4329
From Outside North America: +1 905 764-9420