Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Hamilton Khaki Aviation Pilot Pioneer Mechanical?

At MSRP the Hamilton Khaki Aviation Pilot Pioneer Mechanical is the cheaper of the two at $975, against $1,800 for the Marathon OSAR-D (Original SAR with Date) Automatic 41mm — a $825 gap before any retailer discounting.

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

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm wears larger at 41mm versus 36mm for the Hamilton Khaki Aviation Pilot Pioneer Mechanical — a 5mm difference across the dial.

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

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is rated to 300m versus 100m for the Hamilton Khaki Aviation Pilot Pioneer Mechanical.

Which has a longer power reserve, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Hamilton Khaki Aviation Pilot Pioneer Mechanical?

The Hamilton Khaki Aviation Pilot Pioneer Mechanical 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 Aviation Pilot Pioneer Mechanical?

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

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsHamilton Khaki Aviation Pilot Pioneer Mechanical

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 Aviation Pilot Pioneer Mechanical

h76419931

MSRP $975

At a glance

11 of 29 specs differ

Diameter

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

Khaki Aviation Pilot Pioneer Mechanical36mm

Power Reserve

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

Khaki Aviation Pilot Pioneer Mechanical80h

Water Resistance

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

Khaki Aviation Pilot Pioneer Mechanical100m

MSRP

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

Khaki Aviation Pilot Pioneer Mechanical$975

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Crystal

Sapphire

Mineral

Movement

3 specs

Caliber

Sellita SW220-1

H-50

Type

Automatic

Manual

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$1,800

$975

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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 Aviation Pilot Pioneer Mechanical

Owners widely praise the Hamilton Khaki Aviation Pilot Pioneer Mechanical for its superior fit and finish, clean and unique design, and overall value, with one owner calling it a significant step up in build quality. The watch measures 36mm wide with a 41.7mm lug-to-lug and 12.8mm thickness. Some owners express concern over its mineral crystal, with one noting the bezel's detents are "kinda whatever." On balance, owners rate the Hamilton Khaki Aviation Pilot Pioneer Mechanical highly for its build quality and value proposition.

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