Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsHamilton American Classic RailRoad Auto Chrono

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
American Classic RailRoad Auto Chrono
HamiltonAmerican Classic RailRoad Auto Chrono
MSRP $2,045

At a glance

10 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
American Classic RailRoad Auto Chrono44mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
American Classic RailRoad Auto Chrono60h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
American Classic RailRoad Auto Chrono50m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
American Classic RailRoad Auto Chrono$2,045

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
46mm
44mm
Thickness
13mm
15.3mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Movement

2 specs
Caliber
Sellita SW220-1
H-21
Power Reserve
40h
60h

Pricing

1 specs
MSRP
$2,500
$2,045

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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 American Classic RailRoad Auto Chrono

Owners widely praise the Hamilton American Classic RailRoad Auto Chrono for its historical brand appeal and spectacular appearance, calling the ETA 7750 movement a "tank" and appreciating the date magnifier's integration. Some find its design a bit busy compared to other models. One owner notes an 80-hour power reserve from the H-10 movement and a 40mm case with turned-down lugs for a thinner appearance. Overall, owners rate the Hamilton American Classic RailRoad Auto Chrono highly for its historical brand appeal and robust movement at its price point.

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