Side by side

Fortis Flieger F-43 BicompaxvsRedux Zero-Hour

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
Zero-Hour
ReduxZero-Hour

At a glance

11 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Zero-Hour39mm
Power Reserve
Flieger F-43 Bicompax58h
Zero-Hour41h
Water Resistance
Flieger F-43 Bicompax200m
Zero-Hour200m
MSRP
Flieger F-43 Bicompax$4,180
Zero-Hour

Full specifications

Case

6 specs
Category
Chronograph
Diameter
43mm
39mm
Thickness
14.5mm
13.7mm
Lug-to-Lug
46.6mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium

Crystal & Dial

1 specs
Dial Color
Original
Black

Movement

3 specs
Caliber
Sellita SW510 BH a
Seiko NH35
Power Reserve
58h
41h
Jewels
27
25

Pricing

1 specs
MSRP
$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.

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.

Redux Zero-Hour

Owners widely praise the Redux Courg Zero Hour 39MM for its robust, utilitarian design inspired by pilot and dive tools, its lightweight Grade 5 titanium construction, and its comfortable wearability. The proprietary RDXB1 lume is noted for its bright initial glow, though it fades quickly. The Seiko NH53A or NH35 movement is generally considered reliable. However, multiple owners report a flimsy or fragile crown stem, and some describe the unidirectional bezel as having play or being able to rotate clockwise by one minute, though one owner reported a tight bezel with no play. The 39mm case size is considered good by some, while others find it small for larger wrists or note it looks large, with some desiring a 42mm option. One owner found the titanium finish looked slightly cheap and wished for a bezel insert. The dial is described by one owner as too busy for easy reading without glasses. The Redux Courg Zero Hour 39MM is available for $300, down from an original price of $507.

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