Marathon MSAR (Medium Search & Rescue) Diver's AutomaticvsMarin Instruments Steel Skin-Diver P (Polar)
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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.

MSAR (Medium Search & Rescue) Diver's Automatic

Steel Skin-Diver P (Polar)
Diameter
36mm
39mm
Thickness
18mm
n/a
Water Resistance
300m
highest
200m
MSRP
$1,800
$1,295
lowest
Movement
Sellita SW200-1
Sellita SW200-1
Case
6 specsCrystal & Dial
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Marathon MSAR (Medium Search & Rescue) Diver's Automatic is widely praised for its utilitarian design, exceptional legibility, and robust build quality, meeting ISO 6425 dive watch standards and approved for military use. Reviewers highlight its bright tritium lume for excellent visibility in darkness and its durable, no-nonsense construction suitable for demanding conditions. The watch is noted for its comfortable wearability, though one reviewer found the stock rubber strap required modification. Priced at $900 CAD, the Marathon MSAR (Medium Search & Rescue) Diver's Automatic is a sober tool watch assembled in Switzerland. Overall, reviewers rate the Marathon MSAR (Medium Search & Rescue) Diver's Automatic highly for its uncompromising focus on utility, durability, and legibility.
Owners widely praise the Marin Instruments Steel Skin-Diver P (Polar) for its appealing design language and comfortable wearability, with many calling it a great do-it-all watch. Reviewers highlight its legible dial, smooth-action bezel, and practical, utilitarian design. Some owners find the 39mm case size perfect and appreciate the 20mm lugs for strap versatility. The watch features drilled lugs for easy strap changes and a Sellita SW200-1 movement that kept good time, running at approximately +5 seconds per day in testing. However, some find the steel bezel and dial color combination unremarkable, and one owner noted the lume was merely okay compared to other brands. The $1,295 price for the stainless steel bezel version was considered a significant con by one owner, while another found it well-priced. The 39mm case, while 11.5mm thin, wears larger due to its long lugs, and thicker straps can make it feel bulky.
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