Side by side

Horage Autark K2 Small SecondsvsFortis Flieger F-39

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

Autark K2 Small Seconds
HorageAutark K2 Small Seconds
MSRP $5,590
Flieger F-39
FortisFlieger F-39
MSRP $2,530

At a glance

13 of 29 specs differ
Diameter
Autark K2 Small Seconds39.5mm
Flieger F-3939mm
Power Reserve
Autark K2 Small Seconds72h
Flieger F-3938h
Water Resistance
Autark K2 Small Seconds100m
Flieger F-39200m
MSRP
Autark K2 Small Seconds$5,590
Flieger F-39$2,530

Full specifications

Case

7 specs
Category
Dress
Pilot
Diameter
39.5mm
39mm
Thickness
8.8mm
11.5mm
Lug-to-Lug
48.3mm
46mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
No
Inner
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Horage K2
Sellita SW200-1
Power Reserve
72h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$5,590
$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.

Horage Autark K2 Small Seconds

Owners and reviewers widely praise Horage's technical capabilities and enthusiast-driven approach, with one owner highlighting the brand's craftsmanship, reliability, and value. The Horage Autark K2 Small Seconds features a Grade 5 titanium case and bracelet praised for being lightweight and comfortable for daily wear, offering 100 meters of water resistance and a 72-hour power reserve. Accuracy is rated within -4/+6 seconds per day. On balance, owners and reviewers rate the Horage Autark K2 Small Seconds highly for its technical innovation and value proposition.

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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