Side by side

Fortis Flieger F-43 BicompaxvsTudor Black Bay GMT

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
Black Bay GMT
TudorBlack Bay GMT
MSRP $5,275

At a glance

18 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Black Bay GMT41mm
Power Reserve
Flieger F-43 Bicompax58h
Black Bay GMT70h
Water Resistance
Flieger F-43 Bicompax200m
Black Bay GMT200m
MSRP
Flieger F-43 Bicompax$4,180
Black Bay GMT$5,275

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
43mm
41mm
Thickness
14.5mm
14.6mm
Lug-to-Lug
46mm
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Original
Black
Indices
Applied

Movement

7 specs
Caliber
Sellita SW510 BH a
MT5652
Beat Rate
28,800 vph
0 vph
Power Reserve
58h
70h
Jewels
27
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT

Pricing

1 specs
MSRP
$4,180
$5,275

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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.

Tudor Black Bay GMT

The Tudor Black Bay GMT is widely praised for its in-house movement offering local jumping GMT functionality, its impressive case finishing, and its vintage-inspired, drop-dead good looks. Reviewers highlight its strong value and consider it a quintessential sport watch for travelers. Some enthusiasts find its 15mm thickness divisive, though beveled edges visually reduce its perceived size. Overall, reviewers rate the Tudor Black Bay GMT highly for its excellent design and travel functionality at its price point.

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