Side by side

Fortis Flieger F-43 BicompaxvsLongines LONGINES SPIRIT FLYBACK TITANIUM

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
LONGINES SPIRIT FLYBACK TITANIUM
LonginesLONGINES SPIRIT FLYBACK TITANIUM
MSRP $5,900

At a glance

10 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
LONGINES SPIRIT FLYBACK TITANIUM42mm
Power Reserve
Flieger F-43 Bicompax58h
LONGINES SPIRIT FLYBACK TITANIUM40h
Water Resistance
Flieger F-43 Bicompax200m
LONGINES SPIRIT FLYBACK TITANIUM100m
MSRP
Flieger F-43 Bicompax$4,180
LONGINES SPIRIT FLYBACK TITANIUM$5,900

Full specifications

Case

5 specs
Diameter
43mm
42mm
Thickness
14.5mm
17mm
Lug-to-Lug
49.5mm
Material
Stainless Steel
Titanium
Water Resistance
200m
100m

Crystal & Dial

1 specs
Dial Color
Original
Anthracite

Movement

3 specs
Caliber
Sellita SW510 BH a
L791.4
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$5,900

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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.

LONGINES SPIRIT FLYBACK TITANIUM

The LONGINES SPIRIT FLYBACK TITANIUM is widely praised for its luxurious finishing on titanium, attractive anthracite dial with gold and red accents, and precise COSC-certified L791.4 movement. Owners and reviewers consistently highlight its value as a flyback chronograph with a 68-hour power reserve and 100-meter water resistance. However, its 17mm case thickness is a significant concern for wearability, particularly under sleeves, with some suggesting alternative strap options. On balance, owners and reviewers rate the LONGINES SPIRIT FLYBACK TITANIUM highly for its finishing and value, despite the noted thickness.

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