Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsHamilton Khaki Aviation Pilot Day Date Auto

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

OSAR-D (Original SAR with Date) Automatic 46mm
MarathonOSAR-D (Original SAR with Date) Automatic 46mm
MSRP $2,500
Khaki Aviation Pilot Day Date Auto
HamiltonKhaki Aviation Pilot Day Date Auto
MSRP $1,125

At a glance

10 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
Khaki Aviation Pilot Day Date Auto42mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
Khaki Aviation Pilot Day Date Auto80h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
Khaki Aviation Pilot Day Date Auto100m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
Khaki Aviation Pilot Day Date Auto$1,125

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
46mm
42mm
Thickness
13mm
11.85mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Movement

2 specs
Caliber
Sellita SW220-1
H-40
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$2,500
$1,125

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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 46mm

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm is widely regarded as a rugged and legible timepiece, featuring a familiar geometric dial with MaraGlo lume and a white dial with applied hour markers that enhance legibility. Owners and reviewers note its 300-meter water resistance and the reliable Swiss-made Sellita SW200-1 automatic movement with improved shock protection. The watch is described as large, thick, and heavy, with some owners finding it comfortable on the wrist while others note its substantial presence, particularly at a table. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 46mm for its rugged build and excellent legibility.

Hamilton Khaki Aviation Pilot Day Date Auto

The Hamilton Khaki Aviation Pilot Day Date Auto features an 80-hour power reserve and hacking, with quick-set day and date functions. One owner noted aggressive rotor spin during hand-winding at certain angles, questioning if service was needed. A reviewer criticized the day display's proximity to the center pinion, suggesting a date-only function would have been preferable. Overall, owners and reviewers find the Hamilton Khaki Aviation Pilot Day Date Auto offers practical complications and a substantial power reserve, though the day display's execution is a point of contention.

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