Side by side

Fortis Flieger F-43 BicompaxvsFears Onyx (collective Horology)

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

Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180
Onyx (collective Horology)
FearsOnyx (collective Horology)
MSRP $2,833

At a glance

13 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Onyx (collective Horology)39.5mm
Power Reserve
Flieger F-43 Bicompax58h
Onyx (collective Horology)40h
Water Resistance
Flieger F-43 Bicompax200m
Onyx (collective Horology)15m
MSRP
Flieger F-43 Bicompax$4,180
Onyx (collective Horology)$2,833

Full specifications

Case

7 specs
Category
Chronograph
Sport
Diameter
43mm
39.5mm
Thickness
14.5mm
20mm
Lug-to-Lug
46.95mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
15m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Original
Onyx (Collective Horology)

Movement

3 specs
Caliber
Sellita SW510 BH a
La Joux-Perret G101
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$2,833

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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-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.

Fears Onyx (collective Horology)

Owners widely praise the Fears Onyx (collective Horology) for its exquisite glossy black onyx dial, which displays microscopic striations under magnification. Reviewers note its thin case, under 10.5mm, and a balanced sporty-dressy aesthetic. Water resistance is rated at 150m by one source and 100m by another, and the bracelet features on-the-fly micro-adjustment. Some owners find the 39.5mm diameter slightly large for the style, and one source suggests it doesn't represent top value, though it remains competitive. Overall, owners rate the Fears Onyx highly for its unique stone dial and wearability.

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