Side by side

Fortis Flieger F-43 Triple-GMTvsSeiko Prospex Sea

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
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

11 of 29 specs differ
Diameter
Flieger F-43 Triple-GMT43mm
Prospex Sea43.8mm
Power Reserve
Flieger F-43 Triple-GMT56h
Prospex Sea41h
Water Resistance
Flieger F-43 Triple-GMT200m
Prospex Sea200m
MSRP
Flieger F-43 Triple-GMT$4,840
Prospex Sea$625

Full specifications

Case

4 specs
Category
GMT
Diver
Diameter
43mm
43.8mm
Thickness
14mm
12.8mm
Lug-to-Lug
48.7mm

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Original
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW330-2
4R35
Power Reserve
56h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$4,840
$625

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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 Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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