Side by side

Marathon Arctic OSAR 46mm AutomaticvsSpinnaker Dumas GMT

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
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

8 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Dumas GMT44mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Dumas GMT40h
Water Resistance
Arctic OSAR 46mm Automatic300m
Dumas GMT300m
MSRP
Arctic OSAR 46mm Automatic$2,500
Dumas GMT$399

Full specifications

Case

5 specs
Category
Diver
GMT
Diameter
46mm
44mm
Thickness
13mm
15mm
Lug-to-Lug
43.5mm
48mm
Lug Width
18mm
22mm

Crystal & Dial

1 specs
Dial Color
White
Blue

Movement

1 specs
Caliber
Sellita SW220-1
Seiko NH34A

Pricing

1 specs
MSRP
$2,500
$399

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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.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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