Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsUnimatic Modello Quattro
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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 Quattro
Diameter
41mm
40mm
Lug-to-Lug
43.5mm
n/a
Thickness
13mm
n/a
Water Resistance
300m
300m
Power Reserve
n/a
38h
MSRP
$1,800
$1,050
lowest
Movement
Sellita SW220-1
Sellita SW200-1
Case
5 specsCrystal & Dial
1 specsMovement
3 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 and reviewers praise the Unimatic Modello Quattro for its rugged tool watch aesthetic and sandblasted titanium case, which is notably lightweight. The colorful California dial on some variants is described as striking and legible in bright light, while the satin-finished dial and textured strap on others create a stylish and robust integration. However, the 22mm strap can make the 40mm case feel larger on the wrist, and the strap itself may require effort to tighten properly. Accuracy ratings vary, with one source noting ±12 seconds per day for the Sellita SW200-1b movement. Overall, owners and reviewers find the Unimatic Modello Quattro to be a well-built and reasonably priced tool watch, with its lightweight titanium construction and distinctive dial designs being key highlights.
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