Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsUnimatic Modello Uno
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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

Modello Uno
Diameter
41mm
40mm
Lug-to-Lug
48mm
n/a
Thickness
14mm
n/a
Water Resistance
300m
300m
Power Reserve
n/a
41h
MSRP
$2,500
$740
lowest
Movement
Sellita SW200-1
Seiko NH35
Case
5 specsCrystal & Dial
1 specsMovement
2 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 praise the Unimatic Modello Uno's exceptionally well-finished case and minimalistic, utilitarian design, which feels like a technical instrument. Reviewers note clever case details like mirrored lugs and crown guards, a mix of brushed and polished finishes, and a matte black dial that offers interesting light play. The sapphire crystal's anti-reflective coating creates hypnotic color-swapping effects. Some owners find the stock bracelet and rubber strap uncomfortable, preferring the NATO option. The Seiko NH35 automatic movement is described as reliable. On balance, owners and reviewers rate the Unimatic Modello Uno highly for its distinctive, minimalistic design and impressive case finishing at its price point.
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