Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsMarnaut Safe Harbour 100C

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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.

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

GSAR (Government Search & Rescue) Diver's Automatic

Marnaut Safe Harbour 100C at true scale

Safe Harbour 100C

Diameter

41mm

39mm

Lug-to-Lug

48mm

45mm

lowest

Thickness

14mm

13mm

lowest

Water Resistance

300m

highest

100m

Power Reserve

n/a

41h

MSRP

$2,500

$899

lowest

Movement

Sellita SW200-1

Sellita SW200-1

Case

5 specs
Diameter
41mm
39mm
Thickness
14mm
13mm
Lug-to-Lug
48mm
45mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Anthracite
Black

Movement

1 specs
Power Reserve
0h
41h

Pricing

1 specs
MSRP
$2,500
$899
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Reviews

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 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.

Marnaut Safe Harbour 100C

The Marnaut Safe Harbour 100C is widely praised for its unique sea urchin-inspired dial and compact 39mm tonneau case, which wears well despite its 13.2mm thickness. Owners also highlight its value at EUR 549 and the inclusion of an Italian leather strap, with a 2-year warranty addressing reliability concerns. Some reviewers note the slender handset can get lost on the busy dial and the faux-croc strap is stiff out of the box. Overall, owners and reviewers rate the Marnaut Safe Harbour 100C highly for its distinctive design and strong value proposition within the microbrand segment.

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