Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm 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 $1,800 for the Marathon OSAR-D (Original SAR with Date) Automatic 41mm — a $775 gap before any retailer discounting.

Which is bigger, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Hamilton Khaki Field Mechanical Bronze?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm wears larger at 41mm versus 38mm for the Hamilton Khaki Field Mechanical Bronze — a 3mm difference across the dial.

Which has better water resistance, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Hamilton Khaki Field Mechanical Bronze?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is rated to 300m versus 50m for the Hamilton Khaki Field Mechanical Bronze.

Which has a longer power reserve, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm 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 OSAR-D (Original SAR with Date) Automatic 41mm.

What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 41mm run compared to the Hamilton Khaki Field Mechanical Bronze?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm runs a automatic caliber (Sellita SW220-1), while the Hamilton Khaki Field Mechanical Bronze runs a manual (H-50).

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsHamilton Khaki Field Mechanical Bronze

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

Marathon OSAR-D (Original SAR with Date) Automatic 41mm

41mm-original-sar-w-date-osar-d

MSRP $1,800

Hamilton Khaki Field Mechanical Bronze

h69459510

MSRP $1,025

At a glance

12 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 41mm41mm

Khaki Field Mechanical Bronze38mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 41mm40h

Khaki Field Mechanical Bronze80h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 41mm300m

Khaki Field Mechanical Bronze50m

MSRP

OSAR-D (Original SAR with Date) Automatic 41mm$1,800

Khaki Field Mechanical Bronze$1,025

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

Black

White

Movement

3 specs

Caliber

Sellita SW220-1

H-50

Type

Automatic

Manual

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$1,800

$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 OSAR-D (Original SAR with Date) Automatic 41mm

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is noted for its highly legible white dial with applied hour markers and a functional date magnifier, emphasizing its tool-watch purpose. Its Swiss-made Sellita SW200-1 movement is considered reliable and serviceable. One reviewer found the bracelet lacked refinement and preferred the rubber strap option. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 41mm for its excellent legibility and robust movement.

Fratello

A Blog to Watch

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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