Here’s the review of Marathon Watch GSAR.

This timepiece is a solid tool watch. The case is robust with a fine brushed finish. The lugs are fairly short but thick, with a lug-to-lug size of approximately 47mm. They are also drilled for quick band changes, of which I have taken advantage. The watch sits well on my 7¾-inch wrist. The contoured crown guards protect a large, well-knurled crown with no branding. It appears easy to manipulate while wearing gloves or diving gear. The screw-down action is smooth and shows little possibility of being cross-threaded by my ungraceful digits.

The flat sapphire crystal is slightly raised above the bezel. The unidirectional bezel is very legible and has a silky action, but the detents are positive, and it does not easily rotate when accidentally bumped. The bezel itself composes nearly half of the thickness of the watch. It looks like a large gear or sprocket; once again, easy to rotate with gloves or diving gear. Under the crystal is a deep chapter ring that is polished and reflects the indices slightly, which makes the dial appear larger. This effect is quite evident in the dark when the H3 tritium tubes are glowing.

Aside from the red “300m\1000ft” water resistance rating, the flat black dial has sharp, clean white markings that make the watch quite legible and easy to read in any situation. Two items on the dial that fit into the “cool” factor are the “H3” branding for the tritium tubes and the radiation warning symbol. It’s also nice that the information etched on the case back lets you know that it only contains 26 millicuries of radiation. The date is at the 4:40 position and is black on white.

The H3 tritium tubes are one such item. Here in the Seattle area, we have long nights in the winter. The luminescent paint on many of my watches won’t hold a charge from sunset at 4:00pm till sunrise at 10:00am. My wife has one of those clocks that projects the time on the ceiling for easy timekeeping at night. The 12 index has an orange tube to ensure that the watch is properly oriented when reading the time. The hour, minute, and second hands have tritium tubes that fit the hands. The hands are long enough to reach their respective markings on the dial. There are also 24-hour markings for the military customers.

Aside from the red “300m\1000ft” water resistance rating, the flat black dial has sharp, clean white markings that make the watch quite legible and easy to read in any situation. Two items on the dial that fit into the “cool” factor are the “H3” branding for the tritium tubes and the radiation warning symbol. It’s also nice that the information etched on the case back lets you know that it only contains 26 millicuries of radiation.