Side by side

Fortis Flieger F-43 Triple-GMTvsSeiko 5KX

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

Flieger F-43 Triple-GMT
FortisFlieger F-43 Triple-GMT
MSRP $4,840
5KX
Seiko5KX
MSRP $350

At a glance

12 of 29 specs differ
Diameter
Flieger F-43 Triple-GMT43mm
5KX42.5mm
Power Reserve
Flieger F-43 Triple-GMT56h
5KX41h
Water Resistance
Flieger F-43 Triple-GMT200m
5KX100m
MSRP
Flieger F-43 Triple-GMT$4,840
5KX$350

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
43mm
42.5mm
Thickness
14mm
13.4mm
Lug-to-Lug
46mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Original
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW330-2
4R36
Power Reserve
56h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$4,840
$350

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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 Triple-GMT

The Fortis Flieger F-43 Triple-GMT is widely praised for its stunning dial execution, COSC-certified Kenissi WERK 13 movement with a 70-hour power reserve, and legible Brixtrack luminous indices. Owners and reviewers highlight the surprisingly wearable 43mm titanium case and bracelet, noting its lightness and comfort despite the size, with one source specifically mentioning a quick-adjustable extension. The watch offers 200m water resistance and features a Synchroline indicator. However, some owners note the titanium scratches easily and the bracelet can be difficult to size. The watch is priced at €4,500. On balance, owners and reviewers rate the Fortis Flieger F-43 Triple-GMT highly for its purpose-focused pilot's watch design and innovative movement.

Seiko 5KX

Owners widely praise the Seiko 5 Sports SKX series for its strong lume and comfortable wearability, with many noting its compact feel due to a short lug-to-lug length. The NH36 movement's accuracy varies, with typical performance between +/-5 to 10 seconds per day, though some report better. A lack of screw-down crown and ISO certification are noted drawbacks for its water resistance. Some owners find the bracelet to be of cheaper construction with hollow links, and a few have reported quality control issues. The consensus is that the Seiko 5 Sports SKX series offers good value for its price, appealing to those who appreciate its tool-like nature and iconic lineage.

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