Side by side

Fortis Flieger F-43 BicompaxvsRZE Fortitude 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
Fortitude GMT
RZEFortitude GMT
MSRP $719

At a glance

14 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Fortitude GMT41mm
Power Reserve
Flieger F-43 Bicompax58h
Fortitude GMT40h
Water Resistance
Flieger F-43 Bicompax200m
Fortitude GMT200m
MSRP
Flieger F-43 Bicompax$4,180
Fortitude GMT$719

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
43mm
41mm
Thickness
14.5mm
12mm
Lug-to-Lug
47mm
Lug Width
22mm
20mm
Material
Stainless Steel
Grade 5 Titanium

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Original
Red
Lume
None
Super-LumiNova BGW9

Movement

4 specs
Caliber
Sellita SW510 BH a
Miyota 9075
Power Reserve
58h
40h
Jewels
27
25
Complications
None
GMT

Pricing

1 specs
MSRP
$4,180
$719

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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.

RZE Fortitude GMT

The RZE Fortitude GMT is widely praised for its lightweight titanium construction and durable UltraHex coating, offering exceptional value under $700. Owners and reviewers highlight its comfortable wearability, with a bracelet featuring a quick-adjust clasp and multiple micro-adjustment positions. The Miyota 9075 flyer GMT movement is noted for its accuracy, with one owner reporting -1 to +1 seconds per day, though another source states a range of -10/+30 seconds per day. The watch's design is appreciated for its soul and attention to detail, including a subtle red crown tube indicator and faceted lugs, and its Nimbus Grey dial features a coarse, sandpaper-like texture and fumé effect. A reviewer points out the rotor can be loud and a smaller screwdriver is needed for sizing, while an owner found the GMT hand lume confusing. Overall, owners and reviewers rate the RZE Fortitude GMT highly for its comfortable titanium build, durable coating, and excellent value.

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