Side by side

Fortis Flieger F-39vsSugess Seestern S446 GMT

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
Seestern S446 GMT
SugessSeestern S446 GMT
MSRP $269

At a glance

13 of 29 specs differ
Diameter
Flieger F-3939mm
Seestern S446 GMT40mm
Power Reserve
Flieger F-3938h
Seestern S446 GMT41h
Water Resistance
Flieger F-39200m
Seestern S446 GMT100m
MSRP
Flieger F-39$2,530
Seestern S446 GMT$269

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
39mm
40mm
Thickness
11.5mm
10mm
Lug-to-Lug
46mm
47mm
Lug Width
20mm
19mm
Water Resistance
200m
100m

Crystal & Dial

1 specs
Lume
None
Tritium

Movement

5 specs
Caliber
Sellita SW200-1
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
38h
41h
Jewels
26
25
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$2,530
$269

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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-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.

Sugess Seestern S446 GMT

Owners widely praise the Sugess Seestern S446 GMT for its outstanding finishing and materials at its price point, with specific mentions of the cream or ivory dial, polished hands, and clear crystal offering superb legibility. Accuracy is generally good, with one owner reporting +2/3 seconds per day from the Seiko NH34A movement. Some owners find the lume is not a strong point, and the bracelet clasp could benefit from more micro-adjustment, with screw pins noted as cheap. The GMT hand is described as flat by some, and opinions are split on the "Sugess" versus "Seestern" logo. Overall, owners rate the Sugess Seestern S446 GMT highly for its beautiful dial and excellent build quality for the price.

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