Side by side

Horage Autark K2 Small SecondsvsFortis Flieger F-43 Bicompax

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-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180

At a glance

13 of 29 specs differ
Diameter
Autark K2 Small Seconds39.5mm
Flieger F-43 Bicompax43mm
Power Reserve
Autark K2 Small Seconds72h
Flieger F-43 Bicompax58h
Water Resistance
Autark K2 Small Seconds100m
Flieger F-43 Bicompax200m
MSRP
Autark K2 Small Seconds$5,590
Flieger F-43 Bicompax$4,180

Full specifications

Case

6 specs
Category
Dress
Chronograph
Diameter
39.5mm
43mm
Thickness
8.8mm
14.5mm
Lug-to-Lug
48.3mm
Material
Titanium
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
No
Inner
Dial Color
Black
Original
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Horage K2
Sellita SW510 BH a
Power Reserve
72h
58h
Jewels
25
27

Pricing

1 specs
MSRP
$5,590
$4,180

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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-43 Bicompax

Owners widely praise the Fortis Original for its tool-watch aesthetic, legibility, and robust construction, with many noting excellent lume that lasts all night and precise day/date changes at midnight. The brushed stainless steel case is well-finished, and the 38mm size is considered comfortable and well-weighted despite being smaller than modern watches. Accuracy figures range from +2 seconds/day to +8 seconds/day, and some owners compare Fortis quality favorably to Omega. However, some users find the MSRP too high compared to brands like Sinn and Damasko, and one owner reported internal parts dislodging from a limited edition model. Concerns have also been raised about stripped lug screws on B-42 models and potential parts shortages due to past bankruptcy protection filings. Overall, owners rate the Fortis Original highly for its durable construction and tool-watch functionality at a competitive price point.

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