Side by side

Marathon Arctic OSAR 41mm AutomaticvsBorealis Watch Co. Estoril 300 GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Arctic OSAR 41mm Automatic
MarathonArctic OSAR 41mm Automatic
MSRP $1,800
Estoril 300 GMT
Borealis Watch Co.Estoril 300 GMT
MSRP $600

At a glance

9 of 29 specs differ
Diameter
Arctic OSAR 41mm Automatic41mm
Estoril 300 GMT41.50mm
Power Reserve
Arctic OSAR 41mm Automatic40h
Estoril 300 GMT40h
Water Resistance
Arctic OSAR 41mm Automatic300m
Estoril 300 GMT300m
MSRP
Arctic OSAR 41mm Automatic$1,800
Estoril 300 GMT$600

Full specifications

Case

5 specs
Diameter
41mm
41.50mm
Thickness
13mm
13.5mm
Lug-to-Lug
43.5mm
47mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

2 specs
Dial Color
White
Black
Lume
None
BGW9

Movement

1 specs
Caliber
Sellita SW220-1
Miyota 9075

Pricing

1 specs
MSRP
$1,800
$600

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What people say

Owners + reviewers, side by side

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

Marathon Arctic OSAR 41mm Automatic

The Marathon Arctic OSAR 41mm Automatic is noted for its comfortable wearability on wrists under 7 inches, with one owner finding the 41mm size perfect. Accuracy observations vary, with one owner reporting a consistent +1 second per day and another noting -20 seconds per day. The watch features a Sellita automatic movement and has dimensions of 14mm thickness and a 48mm lug-to-lug. Overall, owners appreciate the Marathon Arctic OSAR 41mm Automatic for its comfortable fit and Marathon's overall appeal.

Borealis Watch Co. Estoril 300 GMT

Owners widely praise the Borealis Watch Co. Estoril 300 GMT for its excellent value, robust build quality, and crisp dial, with reviewers highlighting its exceptionally bright BGW9 lume and dive-ready ceramic bezel. Some owners appreciate the brushed and polished finishes, though one owner noted a desire for a white-painted second hand. The included NATO strap is considered too thick with a loose weave, and the sapphire bezel insert is seen by some as a minor aesthetic departure from its inspirations. Overall, owners rate the Borealis Watch Co. Estoril 300 GMT highly for its impressive build quality and value.

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