Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsHamilton Khaki Aviation Pilot Day-Date - Air Zermatt Auto

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

At a glance

10 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Khaki Aviation Pilot Day-Date - Air Zermatt Auto42mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Khaki Aviation Pilot Day-Date - Air Zermatt Auto80h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Khaki Aviation Pilot Day-Date - Air Zermatt Auto100m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Khaki Aviation Pilot Day-Date - Air Zermatt Auto$1,075

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
41mm
42mm
Thickness
13mm
12.15mm
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
$1,800
$1,075

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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 Aviation Pilot Day-Date - Air Zermatt Auto

The Hamilton Khaki Aviation Pilot Day-Date - Air Zermatt Auto is widely praised for its value, with reviewers noting the Swatch Group's economies of scale contribute to its affordability. Owners and reviewers highlight the large, easy-to-read dial, with one source specifically mentioning the "ice-cold" blue degradé sub-dials as an unusual chromatic anomaly for its price point, and another noting the painted, luminous indices as a significant advantage. The 42mm case is described as offering a nice mix of brushed and polished finishes, and the slightly domed sapphire crystal enhances readability. The H-21 caliber provides a 60-hour power reserve and an anti-magnetic silicon balance spring, while the ETA 2834-2 movement offers precise day/date changes, though one source notes its 40-hour power reserve requires weekly winding. Some criticism is directed at the use of three different fonts and inconsistent color matching for the day/date indicators.

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