Side by side

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

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 SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $750

At a glance

12 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
Prospex SPEEDTIMER41.4mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
Prospex SPEEDTIMER40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
Prospex SPEEDTIMER100m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
Prospex SPEEDTIMER$750

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
46mm
41.4mm
Lug-to-Lug
43.5mm
45.9mm
Lug Width
18mm
21mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Sellita SW220-1
V192
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$2,500
$750

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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 SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER's design, with specific mentions of its beautiful ice blue sundial and compact 39mm case size, which some note wears smaller than its specifications due to a short lug-to-lug distance. Reviewers highlight its racing-inspired aesthetic and versatility, with one owner finding the 39mm solar model a sturdy and reliable everyday watch with 100m water resistance. However, some owners question the value proposition, citing the $700 price for a solar quartz model and a thickness of 13mm, while others expressed a preference for automatic movements. On balance, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER's attractive vintage-inspired design and compact wearability, though some debate its value and thickness for a solar quartz chronograph.

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