Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsSeiko Prospex LX line

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
Prospex LX line
SeikoProspex LX line
MSRP $6,500

At a glance

12 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Prospex LX line44.8mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Prospex LX line72h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Prospex LX line300m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Prospex LX line$6,500

Full specifications

Case

5 specs
Diameter
41mm
44.8mm
Thickness
13mm
15.7mm
Lug-to-Lug
43.5mm
50.9mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

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

Movement

4 specs
Caliber
Sellita SW220-1
5R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Jewels
25
30

Pricing

1 specs
MSRP
$1,800
$6,500

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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.

Seiko Prospex LX line

Owners widely report the Seiko Prospex LX line's finishing is a step up from other models, with a case that sits well on the wrist, and some praise the green sunburst dial with blue anti-reflective sapphire crystal as phenomenal. However, owners note the high MSRP limited sales, with some desiring smaller cases and a reduced price, and others experienced quality control issues such as detached second hands and peeling DLC coating, leading to concerns about fragility. On balance, owners feel the Seiko Prospex LX line was discontinued due to pricing that alienated its target market, despite its attractive dial.

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