Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsUnimatic Modello Uno
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

OSAR-D (Original SAR with Date) Automatic 41mm

Modello Uno
Diameter
41mm
40mm
Lug-to-Lug
43.5mm
n/a
Thickness
13mm
n/a
Water Resistance
300m
300m
MSRP
$1,800
$970
lowest
Movement
Sellita SW220-1
Seiko NH35
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is noted for its high legibility, featuring large hour markers and a white dial with applied indices. A functional date magnifier is present. The watch utilizes a reliable Sellita SW200-1 automatic movement. One reviewer found the bracelet lacked refinement and preferred the rubber strap option. On balance, reviewers highlight the Marathon OSAR-D (Original SAR with Date) Automatic 41mm's strong legibility and functional design as its primary strengths.
Owners widely praise the Unimatic Modello Uno for its well-finished case and solid build quality at its price point, with reviewers highlighting its minimalistic, utilitarian design that feels like a technical instrument. The watch features clever case design with mirrored lines and a mix of finishes, and its matte black dial offers hypnotic light play with the sapphire crystal's anti-reflective coating. One owner notes the Super-LumiNova C3 lume is slightly uneven between the dial, hands, and bezel pearl. The Unimatic Modello Uno uses a reliable Seiko NH35 automatic movement and is 40mm. Some owners found the included bracelet and rubber strap uncomfortable, though a Unimatic nato strap was comfortable. The U1-B's tan lume and "Made in Italy" origin statement are questioned by some. Overall, owners and reviewers rate the Unimatic Modello Uno highly for its distinctive minimalist design and robust build quality for the price.
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