Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Hamilton Khaki Field King Day-Date?

At MSRP the Hamilton Khaki Field King Day-Date is the cheaper of the two at $845, against $1,800 for the Marathon OSAR-D (Original SAR with Date) Automatic 41mm — a $955 gap before any retailer discounting.

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

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm wears larger at 41mm versus 40mm for the Hamilton Khaki Field King Day-Date — a 1mm difference across the dial.

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

Both watches run automatic movements — the Marathon OSAR-D (Original SAR with Date) Automatic 41mm uses the Sellita SW220-1 and the Hamilton Khaki Field King Day-Date uses the H-40.

Side by side

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

Q: Which has a longer power reserve, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Hamilton Khaki Field King Day-Date?

The Hamilton Khaki Field King Day-Date carries a 80-hour power reserve against 40 hours on the Marathon OSAR-D (Original SAR with Date) Automatic 41mm.

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 King Day-Date

h64475131

MSRP $845

At a glance

10 of 29 specs differ

Diameter

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

Khaki Field King Day-Date40mm

Power Reserve

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

Khaki Field King Day-Date80h

Water Resistance

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

Khaki Field King Day-Date100m

MSRP

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

Khaki Field King Day-Date$845

Full specifications

Case

7 specs

Movement

2 specs

Caliber

Sellita SW220-1

H-40

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$1,800

$845

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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 King Day-Date

Hamilton Khaki Field King Day-Date owners widely praise its classic styling, 80-hour power reserve, and excellent value. Opinions on water resistance are split; some express concern over the 50m rating, while others find it sufficient for daily wear and swimming. One owner notes the stock strap can be stiff. Service costs range from $55 for routine maintenance to $220 for full service with movement replacement. On balance, owners rate the Hamilton Khaki Field King Day-Date highly for its classic aesthetics and impressive power reserve at its price point.

From video reviewers

The 80-hour power reserve from the H-40 automatic movement is a significant strength. The 50-meter water resistance is considered a limitation for a field watch.

Reddit·2

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