Side by side

Fortis Flieger F-39vsOak & Oscar The Humboldt GMT SAR Edition

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
The Humboldt GMT SAR Edition
Oak & OscarThe Humboldt GMT SAR Edition
MSRP $2,950

At a glance

14 of 29 specs differ
Diameter
Flieger F-3939mm
The Humboldt GMT SAR Edition39.5mm
Power Reserve
Flieger F-3938h
The Humboldt GMT SAR Edition56 hoursh
Water Resistance
Flieger F-39200m
The Humboldt GMT SAR Edition200m
MSRP
Flieger F-39$2,530
The Humboldt GMT SAR Edition$2,950

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
39mm
39.5mm
Thickness
11.5mm
12.5mm
Lug-to-Lug
46mm
46.8mm
Material
Stainless Steel
Grade 5 Titanium
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Sellita SW200-1
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
38h
56 hoursh
Jewels
26
25

Pricing

1 specs
MSRP
$2,530
$2,950

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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.

Oak & Oscar The Humboldt GMT SAR Edition

Oak & Oscar The Humboldt GMT SAR Edition is praised for its anti-magnetic properties, sandwich lume dial, and overall construction quality for its price point. It features a brushed Grade 5 titanium case, a navy blue sandwich dial with an orange minute track and seconds hand, and a Sellita SW330 movement with a 56-hour power reserve. Minor drawbacks noted include bracelet sizing adjustment and lume brightness. On balance, owners and reviewers rate Oak & Oscar The Humboldt GMT SAR Edition highly for its robust construction and unique dial design at its price point.

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