Which is cheaper, the Marathon Arctic OSAR 36mm Automatic or the Hamilton Khaki Field Mechanical Bronze?

At MSRP the Hamilton Khaki Field Mechanical Bronze is the cheaper of the two at $1,025, against $1,200 for the Marathon Arctic OSAR 36mm Automatic — a $175 gap before any retailer discounting.

Which is bigger, the Marathon Arctic OSAR 36mm Automatic or the Hamilton Khaki Field Mechanical Bronze?

The Hamilton Khaki Field Mechanical Bronze wears larger at 38mm versus 36mm for the Marathon Arctic OSAR 36mm Automatic — a 2mm difference across the dial.

Which has better water resistance, the Marathon Arctic OSAR 36mm Automatic or the Hamilton Khaki Field Mechanical Bronze?

The Marathon Arctic OSAR 36mm Automatic is rated to 300m versus 50m for the Hamilton Khaki Field Mechanical Bronze.

Which has a longer power reserve, the Marathon Arctic OSAR 36mm Automatic or the Hamilton Khaki Field Mechanical Bronze?

The Hamilton Khaki Field Mechanical Bronze carries a 80-hour power reserve against 40 hours on the Marathon Arctic OSAR 36mm Automatic.

What movement does the Marathon Arctic OSAR 36mm Automatic run compared to the Hamilton Khaki Field Mechanical Bronze?

The Marathon Arctic OSAR 36mm Automatic runs a automatic caliber (Sellita SW220-1), while the Hamilton Khaki Field Mechanical Bronze runs a manual (H-50).

Side by side

Marathon Arctic OSAR 36mm AutomaticvsHamilton Khaki Field Mechanical Bronze

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Marathon Arctic OSAR 36mm Automatic

36mm-arctic-original-sar-w-date-on-3-piece-rubber-strap-kit-osar-d

MSRP $1,200

Hamilton Khaki Field Mechanical Bronze

h69459510

MSRP $1,025

At a glance

11 of 29 specs differ

Diameter

Arctic OSAR 36mm Automatic36mm

Khaki Field Mechanical Bronze38mm

Power Reserve

Arctic OSAR 36mm Automatic40h

Khaki Field Mechanical Bronze80h

Water Resistance

Arctic OSAR 36mm Automatic300m

Khaki Field Mechanical Bronze50m

MSRP

Arctic OSAR 36mm Automatic$1,200

Khaki Field Mechanical Bronze$1,025

Full specifications

Case

7 specs

Movement

3 specs

Caliber

Sellita SW220-1

H-50

Type

Automatic

Manual

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$1,200

$1,025

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon Arctic OSAR 36mm Automatic

The Marathon Arctic OSAR 36mm Automatic is noted for its non-tritium dial option, though some owners prefer the 1-12 numeral layout found on other models. One owner found the 36mm size too small for their wrist. Overall, owners appreciate the Marathon Arctic OSAR 36mm Automatic for its non-tritium dial option.

WatchUSeek

Hamilton Khaki Field Mechanical Bronze

Owners and reviewers widely praise the Hamilton Khaki Field Mechanical Bronze for its attractive bronze case that develops a unique patina, its comfortable 38mm size, and the satisfying winding action of its hand-wound H-50 movement, which provides an 80-hour power reserve. The vintage military design, legible matte black dial with beige lume, and overall value are frequently highlighted as key strengths. Some owners note the lugs appear large, and while earlier models had 50m water resistance, newer versions offer 100m. Overall, owners and reviewers rate the Hamilton Khaki Field Mechanical Bronze highly for its vintage aesthetic and character-building patina at an accessible price.

From video reviewers

The watch's bronze case develops a unique patina over time, adding to its character. A potential weakness is the watch's bronze reacting with certain skin types or environments, causing discoloration or staining. Reviewers disagree on the lume brightness, with one reviewer finding it lacking and the other not mentioning it.

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