Side by side

Fortis Flieger F-39vsHamilton Khaki Field King Day-Date

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

Flieger F-39
FortisFlieger F-39
MSRP $2,530
Khaki Field King Day-Date
HamiltonKhaki Field King Day-Date
MSRP $845

At a glance

8 of 29 specs differ
Diameter
Flieger F-3939mm
Khaki Field King Day-Date40mm
Power Reserve
Flieger F-3938h
Khaki Field King Day-Date80h
Water Resistance
Flieger F-39200m
Khaki Field King Day-Date100m
MSRP
Flieger F-39$2,530
Khaki Field King Day-Date$845

Full specifications

Case

4 specs
Category
Pilot
Field
Diameter
39mm
40mm
Thickness
11.5mm
11.8mm
Water Resistance
200m
100m

Movement

3 specs
Caliber
Sellita SW200-1
H-40
Power Reserve
38h
80h
Jewels
26
25

Pricing

1 specs
MSRP
$2,530
$845

Follow this matchup

Get a note when Fortis Flieger F-39 vs Hamilton Khaki Field King Day-Date gets more votes, a community discussion, or a price drop. No account needed.

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-39

Owners and reviewers widely praise the Fortis Flieger F-39 for its robust build quality, excellent finishing often compared favorably to more expensive watches, and legible utilitarian dial with distinctive color accents. The watch is noted for its precise bidirectional bezel action, excellent lume, and comfortable wearability, with one owner reporting accuracy of 1 second fast per day. Some reviewers flag the 39mm case as wearing large due to its lug-to-lug distance, and the 38-hour power reserve of the Sellita SW 200-1 based UW-30 movement is cited as a limitation, though newer versions feature a 70-hour power reserve. Overall, owners and reviewers highly regard the Fortis Flieger F-39 for its tool watch aesthetic and impressive machining and build quality at its price point.

From video reviewers

The 200m water resistance is a notable strength. Reviewers did not reach a consensus on any weaknesses.

Hamilton Khaki Field King Day-Date

Hamilton Khaki Field King Day-Date owners widely praise its classic styling, 80-hour power reserve, and excellent value. Opinions on water resistance are split; some express concern over the 50m rating, while others find it sufficient for daily wear and swimming. One owner notes the stock strap can be stiff. Service costs range from $55 for routine maintenance to $220 for full service with movement replacement. On balance, owners rate the Hamilton Khaki Field King Day-Date highly for its classic aesthetics and impressive power reserve at its price point.

From video reviewers

The 80-hour power reserve from the H-40 automatic movement is a significant strength. The 50-meter water resistance is considered a limitation for a field watch.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.