Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsSternglas Naos Solar

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
Naos Solar
SternglasNaos Solar
MSRP $323

At a glance

14 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Naos Solar38mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Naos Solar
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Naos Solar50m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Naos Solar$323

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
41mm
38mm
Thickness
13mm
10mm
Lug-to-Lug
43.5mm
42mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Lume
None
Luminova Punkten

Movement

4 specs
Caliber
Sellita SW220-1
Seiko VJ76
Type
Automatic
Solar
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$1,800
$323

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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.

Sternglas Naos Solar

Owners widely praise the Sternglas Naos Solar for its elegant Bauhaus-inspired minimalist dial, slim profile, and value for money. The scratch-resistant curved sapphire crystal and functional date mechanism are noted as durable features, with one owner reporting good wear over a year. The solar power and accuracy are highlighted as practical advantages over automatic movements, which some find loud. However, opinions are split, with some owners finding the watch underwhelming and cheap-looking, like a toy, while others love its appearance in person and its clean, appealing design as a smartwatch alternative. The stock leather strap is described as decent but basic and potentially short for larger wrists, with one owner advising a third-party replacement for durability. One owner of a different variant noted the date font is too small to be useful.

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