Marathon Arctic OSAR 41mm AutomaticvsUnimatic Modello Uno U1S-TGMT

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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 Arctic OSAR 41mm Automatic at true scale

Arctic OSAR 41mm Automatic

Unimatic Modello Uno U1S-TGMT at true scale

Modello Uno U1S-TGMT

Diameter

41mm

40mm

Lug-to-Lug

43.5mm

n/a

Thickness

13mm

n/a

Water Resistance

300m

300m

MSRP

$1,800

lowest

$2,680

Movement

Sellita SW220-1

ETA 2893-2

Case

5 specs
Diameter
41mm
40mm
Thickness
13mm
n/a
Lug-to-Lug
43.5mm
n/a
Lug Width
18mm
n/a
Material
316L Stainless Steel
Titanium

Crystal & Dial

1 specs
Dial Color
White
n/a

Movement

1 specs
Caliber
Sellita SW220-1
ETA 2893-2

Pricing

1 specs
MSRP
$1,800
$2,680
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon Arctic OSAR 41mm Automatic

Owners widely praise the Marathon Arctic OSAR 41mm Automatic for its comfortable wearability, with one owner noting it feels lightweight and wears perfectly on a sub-7-inch wrist. The watch is designed for legibility, featuring oversized hour markers as a tool watch. Accuracy observations vary, with one owner reporting a consistent +1 second per day, while another noted -20 seconds per day. The bracelet is described as lacking refinement, with no quick-release or toolless micro-adjustment. On balance, owners and reviewers appreciate the Marathon Arctic OSAR 41mm Automatic for its tool-watch legibility and comfortable wear, though some question its value at the current price point.

Unimatic Modello Uno U1S-TGMT

The Unimatic Modello Uno U1S-TGMT is lauded for its stealthy, minimalist design, featuring a sandblasted titanium case and a matte black dial accented by a subtle orange GMT hand. Owners and reviewers consistently praise the high level of case finishing and the lightweight wearability of the titanium construction. The ETA 2893-2 GMT movement is noted as a welcome upgrade, though some find the "caller" GMT functionality less ideal than a "flyer" GMT. One reviewer suggests the TPU strap could be thicker for the substantial case, and the absence of a date function is seen as a limitation for travelers. Overall, owners rate the Unimatic Modello Uno U1S-TGMT highly for its distinctive design and quality finishing at its price point.