Side by side

Fortis Flieger F-39vsSternglas Marus

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

Flieger F-39
FortisFlieger F-39
MSRP $2,530
Marus
SternglasMarus
MSRP $485

At a glance

11 of 29 specs differ
Diameter
Flieger F-3939mm
Marus42mm
Power Reserve
Flieger F-3938h
Marus42h
Water Resistance
Flieger F-39200m
Marus200m
MSRP
Flieger F-39$2,530
Marus$485

Full specifications

Case

4 specs
Category
Pilot
Diver
Diameter
39mm
42mm
Thickness
11.5mm
14mm
Lug-to-Lug
46mm
53.8mm

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
Lume
None
Luminova grün

Movement

3 specs
Caliber
Sellita SW200-1
Miyota 8215
Power Reserve
38h
42h
Jewels
26

Pricing

1 specs
MSRP
$2,530
$485

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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.

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.

Sternglas Marus

The Sternglas Marus is widely praised for its well-built, heavy feel and excellent bezel action, considered the best in its price range. Despite its 42mm diameter and 52mm lug-to-lug, owners report it fits surprisingly well on slim wrists. A reviewer notes the short seconds hand as a drawback, but highlights the watch as a fun, affordable starting point for a collection, featuring a vibrant Pepsi bezel and an anthracite dial that shifts in appearance, powered by a Miyota 8215 movement for €399. Overall, owners and reviewers rate the Sternglas Marus highly for its robust build and superior bezel at its price point.

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