Marathon Pilot’s Chronograph Watch (CSAR)


The Marathon CSAR Watch is a robust chronograph built to the same standards of water resistance as Marathon’s other dive watches with a specially modified 25 Jewel Valjoux ETA 7750 automatic chronograph movement and self-lluminated 24/7 tritium gas tubes for bright dial illumination in low light.  The Marathon CSAR Watch is a large, functional tool watch that will provide years of enjoyment!


Marathon CSAR Watch

The Marathon CSAR Watch is a robust chronograph built to the same standards of water resistance as Marathon’s other dive watches.  The Marathon CSAR Watch is designed for use in dives, search and rescue operations, and by pilots and aircrew.  Manufactured in accordance with US Government Specification and issued and worn by troops in Iraq and Afghanistan, the Pilot’s Chronograph is commonly referred to as the Chronograph Search and Rescue or CSAR.  Many of these are group purchases for US Navy fighter squadrons on aircraft carriers.

The Marathon CSAR watch is water-resistant down to 30 ATM – 300 meters (1000 feet) submersion.  Made from 316L surgical grade stainless steel, the CSAR is a purpose-built watch that will serve you well and reliably on any adventure you may take.  The glass of the CSAR is in fact not glass, but a synthetic sapphire that will resist scratches, and is coated with an anti-reflective coating to ensure maximum dial legibility. in all lighting conditions.

The Marathon CSAR Watch is hand-assembled in La Chaux de Fonds Switzerland to guarantee the highest level of quality and accuracy in manufacturing.   Inside the CSAR is a modified, adjusted Swiss made, 25 Jewel Valjoux ETA 7750 automatic chronograph movement.  Some CSARs supplied to the military have Sellita chronograph movements .  This one is the Val. 7750!

The CSAR ensures you timekeeping that is accurate and reliable.  To make sure that the time can be constantly read even in low light situations, the CSAR has self-contained Tritium gas tubes placed on each hour marking as well as on the minute and hour hands and MaraGlo photoluminescent paint for the 12-hour bezel marker as well as on the minute and hour chronograph register indexes.  Tritium tubes are self-illuminating gas tubes that contain an isotope of hydrogen, meaning they will not lose brightness over time like photoluminescent paint which requires an external light source to create a glow.

The dial of the Marathon CSAR Watch shows 12 hour and 24 hour time and also displays the Date and Day.  Chronograph timing is dual graduated, inner graduations are 1/5 sec, and as well as decimal 1/100 minute timing (alternate inner timing ring).  A sweep central seconds hand indicates 1/5 sec up to 60 seconds; Chronograph sub-registers measure up to 30 minutes and 12 hours each. Register indexes & hands use Maraglo paint for low light viewing.  Encapsulated tritium (Isotope H3) light sources are used for dial at each hour position as well as the Minute and Hour hands, activity between 28-30 millicuries (under 30 millicuries).

Meets the requirements of

NSN: 6645015440408 

NSN: 6645200028253

SKU: WW194014


Movement: ETA Valjoux 7750 with Incabloc™ Shock Absorber
No of Jewels: 
Scale Quantity: 
Scale Range: 
1-12 (13-24)
Calendar Type: 
Day & Date
Luminous Features: 
Tritium Gas Tubes and MaraGlo™
Crystal Material: 
Crown Type: 
Case Material: 
316L Stainless Steel
Case Finish: 
Bezel Type: 
Bezel Scale: 
60 Minute
30 ATM
Case Diameter: 
Case Thickness: 
Lug Width: 

If you’d like to save on a demonstrator Marathon CSAR Watch used as a display at several watch shows, take a look here (same watch only used for display purposes) –> Demo CSAR watch

Considered by many top be the finest actual, authentic military issue watch currently in production….we wholeheartedly agree.  Get your’s today and save!

Additional information

Strap style

2 piece dive strap, 3 piece strap system