Side by side

Fortis Flieger F-43 BicompaxvsSeiko Prospex Sea PADI Special Edition

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
Prospex Sea PADI Special Edition
SeikoProspex Sea PADI Special Edition
MSRP $650

At a glance

12 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Prospex Sea PADI Special Edition41.7mm
Power Reserve
Flieger F-43 Bicompax58h
Prospex Sea PADI Special Edition41h
Water Resistance
Flieger F-43 Bicompax200m
Prospex Sea PADI Special Edition200m
MSRP
Flieger F-43 Bicompax$4,180
Prospex Sea PADI Special Edition$650

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
43mm
41.7mm
Thickness
14.5mm
12.3mm
Lug-to-Lug
49.5mm
Lug Width
22mm
20mm

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW510 BH a
4R35
Power Reserve
58h
41h
Jewels
27
23

Pricing

1 specs
MSRP
$4,180
$650

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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.

Seiko Prospex Sea PADI Special Edition

The Seiko Prospex Sea PADI Special Edition is widely praised for its attractive blue and red PADI colors, rich dial aesthetic, and excellent lume that stands out even in dim environments. Owners highlight its robust build quality and excellent bezel action, noting the wave dial is a favorite. However, the Hardlex crystal and the 4R36 movement's accuracy range of +45 to -35 seconds per day are identified as compromises for the price. Some owners find the diver's extension difficult to open and the bracelet adjustment challenging, though manageable. On balance, owners and reviewers rate the Seiko Prospex Sea PADI Special Edition highly for its build quality and striking dial design at its price point.

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