Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsSanturce El Tiburón — Swiss Automatic Dive Watch
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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

El Tiburón — Swiss Automatic Dive Watch
Diameter
41mm
39mm
Lug-to-Lug
48mm
46mm
lowest
Thickness
14mm
12.2mm
lowest
Water Resistance
300m
300m
MSRP
$2,500
$949
lowest
Movement
Sellita SW200-1
Sellita SW200-1
Case
4 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.
The Santurce El Tiburón — Swiss Automatic Dive Watch features a 39mm sandblasted steel case and a flat sapphire crystal with no glare. Reviewers praise its smooth and secure bezel action, along with excellent and even luminous material application on the hands and markers. Overall, owners rate the Santurce El Tiburón — Swiss Automatic Dive Watch highly for its glare-free crystal and excellent lume application.
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