Side by side

Marathon Arctic OSAR 46mm AutomaticvsFortis Flieger F-39

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
Flieger F-39
FortisFlieger F-39
MSRP $2,530

At a glance

12 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Flieger F-3939mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Flieger F-3938h
Water Resistance
Arctic OSAR 46mm Automatic300m
Flieger F-39200m
MSRP
Arctic OSAR 46mm Automatic$2,500
Flieger F-39$2,530

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
46mm
39mm
Thickness
13mm
11.5mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

3 specs
Caliber
Sellita SW220-1
Sellita SW200-1
Power Reserve
40h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$2,500
$2,530

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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.

Fortis Flieger F-39

Owners and reviewers widely praise the Fortis Flieger F-39 for its robust build quality, excellent finishing often compared favorably to more expensive watches, and legible utilitarian dial with distinctive color accents. The watch is noted for its precise bidirectional bezel action, excellent lume, and comfortable wearability, with one owner reporting accuracy of 1 second fast per day. Some reviewers flag the 39mm case as wearing large due to its lug-to-lug distance, and the 38-hour power reserve of the Sellita SW 200-1 based UW-30 movement is cited as a limitation, though newer versions feature a 70-hour power reserve. Overall, owners and reviewers highly regard the Fortis Flieger F-39 for its tool watch aesthetic and impressive machining and build quality at its price point.

From video reviewers

The 200m water resistance is a notable strength. Reviewers did not reach a consensus on any weaknesses.

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