Side by side

Marathon Arctic OSAR 36mm AutomaticvsSpinnaker Dumas GMT

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

Arctic OSAR 36mm Automatic
MarathonArctic OSAR 36mm Automatic
MSRP $1,200
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

8 of 29 specs differ
Diameter
Arctic OSAR 36mm Automatic36mm
Dumas GMT44mm
Power Reserve
Arctic OSAR 36mm Automatic40h
Dumas GMT40h
Water Resistance
Arctic OSAR 36mm Automatic300m
Dumas GMT300m
MSRP
Arctic OSAR 36mm Automatic$1,200
Dumas GMT$399

Full specifications

Case

5 specs
Category
Diver
GMT
Diameter
36mm
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
$1,200
$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 36mm Automatic

The Marathon Arctic OSAR 36mm Automatic is noted for its non-tritium dial option, though some owners prefer the 1-12 numeral layout found on other models. One owner found the 36mm size too small for their wrist. Overall, owners appreciate the Marathon Arctic OSAR 36mm Automatic for its non-tritium dial option.

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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