Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsStudio Underd0g Full Moon

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

GSAR (Government Search & Rescue) Diver's Automatic
MarathonGSAR (Government Search & Rescue) Diver's Automatic
MSRP $2,100
Full Moon
Studio Underd0gFull Moon
MSRP $800

At a glance

11 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
Full Moon39.5mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
Full Moon40h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
Full Moon
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Full Moon$800

Full specifications

Case

7 specs
Category
Diver
Casual
Diameter
41mm
39.5mm
Thickness
14mm
Lug-to-Lug
48mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m

Crystal & Dial

1 specs
Dial Color
Anthracite
Standard

Movement

2 specs
Caliber
Sellita SW200-1
Type
Automatic
Manual

Pricing

1 specs
MSRP
$2,100
$800

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon GSAR (Government Search & Rescue) Diver's Automatic

The Marathon GSAR (Government Search & Rescue) Diver's Automatic is widely praised for its legibility, comfort, and exceptional tritium illumination, with reviewers highlighting its utilitarian, military-equipment feel and a 41mm case size considered ideal. Owners appreciate its grippy bezel and the 300 meters of water resistance provided by the screw-down crown, deeming it a solid value for a Swiss-made tool watch. Some owners report quality control issues, with one user needing to warranty two watches, and another notes the GSAR wears taller than other models, leading to occasional bumping. The reliable ETA 2824-A2 movement is a consistent feature. Overall, owners and reviewers rate the Marathon GSAR (Government Search & Rescue) Diver's Automatic highly for its bright tritium lume and robust, no-nonsense tool watch design.

Studio Underd0g Full Moon

Owners widely praise the Studio Underd0g Full Moon's harmonious creamy dial and its 37mm case, which fits flawlessly. The innovative sapphire disc with numerals is a highlight, though two visible screws holding it are noted as a minor aesthetic drawback. Some owners find the watch overpriced, while others see value in the upgraded Sellita movement under $1k. Lume is surprisingly good, and the included NATO strap is preferred by some over the leather. Accuracy ranges from +1/+2 seconds per day to about -6 seconds per day. On balance, owners rate the Studio Underd0g Full Moon highly for its versatile dial and well-fitting case at the price point.

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