Side by side

Marathon Arctic OSAR 46mm AutomaticvsGruppo Gamma Vanguard Steel

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
Vanguard Steel
Gruppo GammaVanguard Steel
MSRP $790

At a glance

13 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Vanguard Steel42mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Vanguard Steel42h
Water Resistance
Arctic OSAR 46mm Automatic300m
Vanguard Steel100m
MSRP
Arctic OSAR 46mm Automatic$2,500
Vanguard Steel$790

Full specifications

Case

7 specs
Category
Diver
Diameter
46mm
42mm
Thickness
13mm
12.6mm
Lug-to-Lug
43.5mm
49.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

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

Movement

2 specs
Caliber
Sellita SW220-1
Miyota 9039
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$2,500
$790

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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 Vanguard Steel

The Gruppo Gamma Vanguard Steel is praised for its aged steel case and cream sandwich dial. However, some owners dislike the distorted sapphire crystal and the absence of minute markers, with one noting difficulty in replacing the crystal due to hand fitment. The watch features a Miyota 9039 movement with a 42-hour power reserve and an accuracy range of -10 to +30 seconds per day, and is offered with two strap options. On balance, owners value the Gruppo Gamma Vanguard Steel for its distinctive aged aesthetic and dial design, despite some reservations about the crystal.

From video reviewers

Movement accuracy is a notable strength, with one reviewer noting a -1.8 second per day deviation after initial testing. A weakness is the substantial price hike for the re-release model, which raises questions about whether the upgrades justify the cost. Reviewers disagree on the watch's originality, with one calling it "decidedly derivative" and the other not mentioning this aspect.

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