Side by side

Marathon Arctic OSAR 46mm AutomaticvsBremont Supermarine 300M

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

Arctic OSAR 46mm Automatic
MarathonArctic OSAR 46mm Automatic
MSRP $2,500
Supermarine 300M
BremontSupermarine 300M
MSRP $3,550

At a glance

8 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Supermarine 300M40mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Supermarine 300M40h
Water Resistance
Arctic OSAR 46mm Automatic300m
Supermarine 300M300m
MSRP
Arctic OSAR 46mm Automatic$2,500
Supermarine 300M$3,550

Full specifications

Case

5 specs
Diameter
46mm
40mm
Thickness
13mm
12mm
Lug-to-Lug
43.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
904L Stainless Steel

Crystal & Dial

1 specs
Dial Color
White
Green

Movement

1 specs
Caliber
Sellita SW220-1
BE-92AE

Pricing

1 specs
MSRP
$2,500
$3,550

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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 46mm Automatic

Owners widely praise the Marathon Arctic OSAR 46mm Automatic for its overbuilt toughness and industrial, instrument-like aesthetic, with some preferring the Arctic dial for legibility. One owner notes the automatic movement may be unnecessary for rough use compared to a quartz option. Reviewers mention the MaraGlo luminous paint and a Sellita SW200-1 automatic movement. Some owners question its rising price and luxury positioning, with one reporting poor lume and movement performance. Overall, owners value the Marathon Arctic OSAR 46mm Automatic for its robust build and utilitarian design.

Bremont Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

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