Marathon Arctic OSAR 41mm AutomaticvsCertina DS Action Diver 40.5mm Powermatic 80

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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

Certina DS Action Diver 40.5mm Powermatic 80 at true scale

DS Action Diver 40.5mm Powermatic 80

Diameter

41mm

40.5mm

Lug-to-Lug

43.5mm

lowest

45.0mm

Thickness

13mm

lowest

13.2mm

Water Resistance

300m

300m

Power Reserve

n/a

80h

MSRP

$1,800

$1,032

lowest

Movement

Sellita SW220-1

POWERMATIC 80.611

Case

5 specs
Diameter
41mm
40.5mm
Thickness
13mm
13.22mm
Lug-to-Lug
43.5mm
45.01mm
Lug Width
18mm
19mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

1 specs
Dial Color
White
n/a

Movement

2 specs
Caliber
Sellita SW220-1
POWERMATIC 80.611
Power Reserve
0h
80h

Pricing

1 specs
MSRP
$1,800
$1,032
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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.

Certina DS Action Diver 40.5mm Powermatic 80

Owners and reviewers widely praise the Certina DS Action Diver 40.5mm Powermatic 80 for its exceptional value, robust build quality, and ISO 6425 certification, with many highlighting its precise Powermatic 80.611 movement and excellent legibility. The watch is frequently lauded for its vibrant sunburst dials, clean design with gilt accents, and the smooth action of its engraved ceramic bezel. Some owners note the 40.5mm case's 14mm thickness as substantial, and a few find the end links do not perfectly align with the case, while others report accuracy between 3-6 seconds per day. Overall, owners and reviewers rate the Certina DS Action Diver 40.5mm Powermatic 80 highly for its impressive quality and value proposition in the dive watch market.