Side by side

Fortis Flieger F-43 BicompaxvsZelos Thresher 44

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
Thresher 44
ZelosThresher 44
MSRP $549

At a glance

12 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Thresher 4444mm
Power Reserve
Flieger F-43 Bicompax58h
Thresher 4440h
Water Resistance
Flieger F-43 Bicompax200m
Thresher 44500m
MSRP
Flieger F-43 Bicompax$4,180
Thresher 44$549

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
43mm
44mm
Thickness
14.5mm
12.8mm
Lug-to-Lug
44mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
500m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Original
Grey

Movement

3 specs
Caliber
Sellita SW510 BH a
Miyota 9015
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$549

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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.

Zelos Thresher 44

Owners widely praise the Zelos Thresher 44, with one owner noting its finish has proven remarkably scratch-resistant. However, one owner found the finishing on their hammered grey variant not as well done as expected. The Zelos Thresher 44 with an agate dial sold out in 90 seconds, with one owner receiving theirs and noting the bracelet was fully wrapped. Overall, owners rate the Zelos Thresher 44 highly for its desirability and scratch-resistant finish.

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