Side by side

Fortis Flieger F-43 BicompaxvsHamilton Khaki Field King Auto

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 King Auto
HamiltonKhaki Field King Auto
MSRP $845

At a glance

11 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Khaki Field King Auto40mm
Power Reserve
Flieger F-43 Bicompax58h
Khaki Field King Auto80h
Water Resistance
Flieger F-43 Bicompax200m
Khaki Field King Auto50m
MSRP
Flieger F-43 Bicompax$4,180
Khaki Field King Auto$845

Full specifications

Case

6 specs
Category
Chronograph
Field
Diameter
43mm
40mm
Thickness
14.5mm
11.15mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Water Resistance
200m
50m

Crystal & Dial

1 specs
Dial Color
Original
Black

Movement

3 specs
Caliber
Sellita SW510 BH a
H-40
Power Reserve
58h
80h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$845

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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 King Auto

Owners and reviewers widely praise the Hamilton Khaki Field King Auto for its 80-hour power reserve, hacking capability, and snappy day-date function, with accuracy figures ranging from +1 to +5 seconds per day. The watch is also noted for its legibility, attractive dial options, and 100m water resistance. Some owners find the stock strap stiff and the case finishing lacks fine detail, while others mention the lume is decent but fades significantly after about 30 minutes. The lack of an anti-reflective coating on the sapphire crystal is a recurring point, and the crown does not feel like it fully pushes in for some. On balance, owners and reviewers rate the Hamilton Khaki Field King Auto highly for its robust feature set and value, particularly its day-date complication and extended power reserve.

From video reviewers

The 80-hour power reserve from the H-40 movement is a significant advantage. The lack of AR coating on the sapphire crystal hinders legibility in direct light, and the 50-meter water resistance is limited for a field watch. Reviewers disagreed on the watch case geometry and ergonomics, with one noting it contributed to buyer's remorse and another suggesting it should offer a comfortable fit.

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