Side by side

Marathon Arctic OSAR 46mm AutomaticvsBremont Supermarine 500M

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 500M
BremontSupermarine 500M
MSRP $4,700

At a glance

8 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Supermarine 500M43mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Supermarine 500M40h
Water Resistance
Arctic OSAR 46mm Automatic300m
Supermarine 500M500m
MSRP
Arctic OSAR 46mm Automatic$2,500
Supermarine 500M$4,700

Full specifications

Case

4 specs
Diameter
46mm
43mm
Lug-to-Lug
43.5mm
Lug Width
18mm
22mm
Water Resistance
300m
500m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Black

Movement

1 specs
Caliber
Sellita SW220-1
BE-92AE

Pricing

1 specs
MSRP
$2,500
$4,700

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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 500M

Owners widely praise the Bremont Supermarine 500M's luxurious appearance and sapphire bezel, with some preferring its design over other luxury dive watches. Reviewers note its updated, legible dial with excellent, long-lasting Super-LumiNova lume. The hardened steel case with anti-reflective coating offers scratch resistance, and the crown placement is a favored feature. Some owners find the 43mm thickness substantial, and one reviewer questions the long-term water resistance of its three-piece case construction compared to traditional designs. Criticisms include the lack of a dive suit extension on the bracelet and a second hand that can be difficult to see in low light, with some finding the bezel markings could be more prominent. Overall, owners and reviewers consider the Bremont Supermarine 500M a handsome, rugged dive watch with a refined look that competes well with more expensive brands.

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