Side by side

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

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

OSAR-D (Original SAR with Date) Automatic 41mm
MarathonOSAR-D (Original SAR with Date) Automatic 41mm
MSRP $1,800
Khaki Field Mechanical
HamiltonKhaki Field Mechanical
MSRP $725

At a glance

11 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Khaki Field Mechanical36mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Khaki Field Mechanical80h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Khaki Field Mechanical100m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Khaki Field Mechanical$725

Full specifications

Case

6 specs
Category
Diver
Field
Diameter
41mm
36mm
Thickness
13mm
10.2mm
Lug-to-Lug
43.5mm
46mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Crystal
Sapphire
Acrylic

Movement

3 specs
Caliber
Sellita SW220-1
H-50
Type
Automatic
Manual
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$1,800
$725

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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.

Hamilton Khaki Field Mechanical

Owners widely praise the Hamilton Khaki Field Mechanical as an archetype of a field watch, highlighting its thin case, excellent finishing, and smooth winding action, with some calling it the best pure field watch available. The daily winding ritual is considered a charming aspect of ownership, and the branding is noted as tasteful and subtle. One owner specifically appreciates the lugs. A drawback cited is the highly reflective, non-AR-coated crystal, and accuracy ranges from -6 seconds per day to unspecified better performance. Overall, owners rate the Hamilton Khaki Field Mechanical highly for its rugged, all-business aesthetic and value as a quintessential field watch.

From video reviewers

The watch's pure field style design is a significant strength. The lume brightness is a shared weakness. Reviewers disagreed on the power reserve, with one stating 80 hours and another 46 hours.

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