Laco Amazonas 42vsMarathon GSAR (Government Search & Rescue) Diver's Automatic
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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.

Amazonas 42

GSAR (Government Search & Rescue) Diver's Automatic
Diameter
39mm
41mm
Lug-to-Lug
n/a
48mm
Thickness
13mm
lowest
14mm
Water Resistance
300m
300m
MSRP
$1,200
lowest
$2,500
Movement
Sellita SW200-1
Sellita SW200-1
Case
5 specsCrystal & Dial
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Laco Amazonas 42 for its attractive price and high-contrast electric lime green dial, which is noted to be stunning in low light. Reviewers and owners alike highlight its robust feel and value. Some owners find the Sellita SW200-1 movement's rotor to be a bit noisy due to free-spinning. One reviewer would have preferred a blasted finish over the brushed one for a more tool-like identity, and found the bracelet clasp hinges a bit loose, though forgivable given the price. On balance, owners rate the Laco Amazonas 42 highly for its vibrant dial and overall value proposition.
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.
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