Side by side

Marathon Arctic OSAR 46mm AutomaticvsGruppo Gamma Field III

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
Field III
Gruppo GammaField III
MSRP $439

At a glance

13 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Field III40mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Field III41h
Water Resistance
Arctic OSAR 46mm Automatic300m
Field III200m
MSRP
Arctic OSAR 46mm Automatic$2,500
Field III$439

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
46mm
40mm
Thickness
13mm
14mm
Lug-to-Lug
43.5mm
48.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
White
Black
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Sellita SW220-1
Seiko Instruments NH38A
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$2,500
$439

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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.

Gruppo Gamma Field III

The watch's 200m water resistance is a notable strength. A weakness is the use of the Seiko NH34A GMT movement, which might be considered less desirable than some other options due to its relatively lower grade compared to other movements in this price range.

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