Marathon Arctic OSAR 46mm AutomaticvsSeiko Captain Willard
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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.

Arctic OSAR 46mm Automatic

Captain Willard
Diameter
46mm
42.7mm
Lug-to-Lug
n/a
46.6mm
Thickness
13mm
lowest
13.2mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
70h
MSRP
$2,500
$1,300
lowest
Movement
Sellita SW220-1
Seiko 6R35
Case
6 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Marathon Arctic OSAR 46mm Automatic for its overbuilt toughness and industrial, instrument-like aesthetic, with some preferring the Arctic dial for legibility. One owner notes the MaraGlo luminous paint is likened to sliced eggs. The watch features a Swiss automatic movement and 300M ISO-rated water resistance. Some owners question its rising price and luxury positioning, with one noting poor lume and movement performance. Overall, owners rate the Marathon Arctic OSAR 46mm Automatic highly for its rugged, tool-watch build and legibility.
The Seiko Captain Willard is praised for its supremely wearable 42.7mm case, icy white textured dial, and bright LumiBrite lume, with reviewers noting impressive finishing and value over $1,000. Some models feature a unique azurage textured navy blue bezel insert, while others have a matte grey or unidirectional bezel with cream accents. The Seiko Captain Willard houses the 6R35 automatic movement with a 70-hour power reserve and 200m water resistance, though one reviewer questions if its performance specs match its price. Overall, owners and reviewers rate the Seiko Captain Willard highly for its comfortable slim profile and excellent LumiBrite lume at its price point.
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