Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsZelos Nasa Edition (sellita)

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
Nasa Edition (sellita)
ZelosNasa Edition (sellita)
MSRP $629

At a glance

11 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Nasa Edition (sellita)39mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Nasa Edition (sellita)40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Nasa Edition (sellita)50m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Nasa Edition (sellita)$629

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41mm
39mm
Thickness
13mm
7.6mm
Lug-to-Lug
43.5mm
39mm
Lug Width
18mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
NASA Edition (Sellita)

Movement

2 specs
Caliber
Sellita SW220-1
ETA/Peseux 7001
Type
Automatic
Manual

Pricing

1 specs
MSRP
$1,800
$629

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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.

Zelos Nasa Edition (sellita)

The Zelos Nasa Edition (sellita) is praised for its thinness, stemming from its hand-wound Sellita SW215 movement, and is noted for its good size and wearability. The watch features a 39mm case, a 45mm lug to lug, and a 20mm lug width. On balance, owners rate the Zelos Nasa Edition (sellita) highly for its comfortable dimensions and thin profile.

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