Side by side

Fortis Flieger F-43 BicompaxvsRZE Aspirare

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
Aspirare
RZEAspirare
MSRP $699

At a glance

12 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Aspirare44mm
Power Reserve
Flieger F-43 Bicompax58h
Aspirare40h
Water Resistance
Flieger F-43 Bicompax200m
Aspirare200m
MSRP
Flieger F-43 Bicompax$4,180
Aspirare$699

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
43mm
44mm
Thickness
14.5mm
13mm
Lug-to-Lug
53mm
Material
Stainless Steel
Grade 5 Titanium
Caseback
Solid
Solid screw-down

Crystal & Dial

2 specs
AR Coating
Inner
Underside
Dial Color
Original
White

Movement

3 specs
Caliber
Sellita SW510 BH a
Miyota 9039
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$699

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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 Aspirare

The RZE Aspirare is widely praised for its exceptional value and build quality at $599, featuring a 44mm titanium case with UltraHex coating and a Miyota 9015 movement. Owners find the watch surprisingly comfortable, even on smaller wrists, and appreciate its modern, futuristic design and interchangeable bezel system. Some reviewers note the minute hand appears slightly short relative to the chapter ring, and the 53mm lug-to-lug may be challenging for smaller wrists. On balance, owners and reviewers rate the RZE Aspirare highly for its robust titanium construction and strong value proposition.

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