Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsSquale 1521 Classic COSC

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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.

Marathon OSAR-D (Original SAR with Date) Automatic 41mm at true scale

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

Squale 1521 Classic COSC at true scale

1521 Classic COSC

Diameter

41mm

42mm

Lug-to-Lug

43.5mm

lowest

48mm

Thickness

13mm

12.5mm

lowest

Water Resistance

300m

500m

highest

Power Reserve

n/a

38h

MSRP

$1,800

lowest

$1,965

Movement

Sellita SW220-1

Sellita SW200-1

Case

6 specs
Diameter
41mm
42mm
Thickness
13mm
12.5mm
Lug-to-Lug
43.5mm
48mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Steel
Water Resistance
300m
500m

Crystal & Dial

2 specs
Crystal Shape
n/a
Flat
Indices
n/a
Applied

Movement

2 specs
Caliber
Sellita SW220-1
Sellita SW200-1
Power Reserve
0h
38h

Pricing

1 specs
MSRP
$1,800
$1,965
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Reviews

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 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.

Squale 1521 Classic COSC

Owners widely praise the Squale 1521 Classic COSC's well-proportioned 42mm case, with one reviewer calling it a masterclass in case design. The COSC certification is noted to improve accuracy, and the bezel indices are now fully lumed, a feature some owners find superior. The brushed case with polished chamfers is described as a significant and attractive aesthetic update. However, some owners prefer older bezel designs, and opinions on the lume are mixed, with one user finding it only "okay." One owner reported moisture ingress after a shower due to a loose case back on a new watch. The Squale 1521 Classic COSC is priced at CHF 1,475 and uses a Sellita SW200-1 movement. Overall, owners rate the Squale 1521 Classic COSC highly for its updated finishing and improved accuracy.

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