Side by side

Fortis Flieger F-43 BicompaxvsHamilton Khaki Field Mechanical

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
Khaki Field Mechanical
HamiltonKhaki Field Mechanical
MSRP $725

At a glance

13 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Khaki Field Mechanical36mm
Power Reserve
Flieger F-43 Bicompax58h
Khaki Field Mechanical80h
Water Resistance
Flieger F-43 Bicompax200m
Khaki Field Mechanical100m
MSRP
Flieger F-43 Bicompax$4,180
Khaki Field Mechanical$725

Full specifications

Case

6 specs
Category
Chronograph
Field
Diameter
43mm
36mm
Thickness
14.5mm
10.2mm
Lug-to-Lug
46mm
Lug Width
22mm
18mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Acrylic
Dial Color
Original
Black

Movement

4 specs
Caliber
Sellita SW510 BH a
H-50
Type
Automatic
Manual
Power Reserve
58h
80h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$725

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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.

Hamilton Khaki Field Mechanical

Owners widely praise the Hamilton Khaki Field Mechanical as an archetype of a field watch, highlighting its thin case, excellent finishing, and smooth winding action, with some calling it the best pure field watch available. The daily winding ritual is considered a charming aspect of ownership, and the branding is noted as tasteful and subtle. One owner specifically appreciates the lugs. A drawback cited is the highly reflective, non-AR-coated crystal, and accuracy ranges from -6 seconds per day to unspecified better performance. Overall, owners rate the Hamilton Khaki Field Mechanical highly for its rugged, all-business aesthetic and value as a quintessential field watch.

From video reviewers

The watch's pure field style design is a significant strength. The lume brightness is a shared weakness. Reviewers disagreed on the power reserve, with one stating 80 hours and another 46 hours.

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