Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsResco Resco DLC
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

GSAR (Government Search & Rescue) Diver's Automatic

Resco DLC
Diameter
41mm
42mm
Lug-to-Lug
48mm
lowest
49.7mm
Thickness
14mm
13mm
lowest
Water Resistance
300m
300m
MSRP
$2,500
$2,155
lowest
Movement
Sellita SW200-1
Sellita SW200-1
Case
5 specsCrystal & Dial
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Marathon GSAR (Government Search & Rescue) Diver's Automatic is widely praised as a versatile and well-made tool watch, with reviewers highlighting its legibility, utilitarian build, and comfort. Owners appreciate the tritium gas tubes for exceptional illumination in darkness, a feature noted as superior to some alternatives. The 41mm case size is considered ideal by some, though one owner found it wore tall and bumped on objects. While the watch is generally seen as a solid value for a Swiss-made tool watch, some owners have reported quality control issues requiring warranty service. Overall, owners and reviewers rate the Marathon GSAR (Government Search & Rescue) Diver's Automatic highly for its robust build and constant legibility from tritium.
Owners widely report Resco watches are tough and American-made, with one owner detailing exceptional service after a severe accident damaged their Patriot Titanium, and another noting helpful customer service when a strap pin broke. The bezel action is described as tight, and the lume is bright. One owner notes the matte caseback scratches easily from strap wear. The winding action is described as rough, attributed to the model line, and one reviewer felt that for $1400, a higher level of refinement was expected, finding the case finishing comparable to significantly less expensive models. On balance, owners value the ruggedness and customer service of the Resco DLC, despite some reservations about case finishing and winding refinement at its price point.
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