Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsSeiko Prospex Land Mechanical

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
Prospex Land Mechanical
SeikoProspex Land Mechanical
MSRP $995

At a glance

13 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
Prospex Land Mechanical39.5mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
Prospex Land Mechanical72h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
Prospex Land Mechanical200m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
Prospex Land Mechanical$995

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
46mm
39.5mm
Thickness
13mm
12.7mm
Lug-to-Lug
43.5mm
46.4mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW220-1
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$2,500
$995

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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.

Seiko Prospex Land Mechanical

Owners widely praise the Seiko Prospex Land Mechanical for its unique style, useful day-date complication, and value, with some finding it suitable as a one-watch-for-all-occasions. Accuracy and durability are noted as strengths, with one owner reporting good performance even in water submersion. However, multiple owners criticize its size, with figures around 41mm to 43mm and 14.4mm thickness being flagged as too large and thick for smaller wrists. The Hardlex crystal and a potentially loose inner compass bezel are also points of criticism. On balance, owners rate the Seiko Prospex Land Mechanical highly for its unique style and value, despite concerns over its substantial dimensions.

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