Side by side

Fortis Flieger F-43 BicompaxvsSternglas Naos Pro Automatik

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
Naos Pro Automatik
SternglasNaos Pro Automatik
MSRP $755

At a glance

12 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Naos Pro Automatik38mm
Power Reserve
Flieger F-43 Bicompax58h
Naos Pro Automatik42h
Water Resistance
Flieger F-43 Bicompax200m
Naos Pro Automatik50m
MSRP
Flieger F-43 Bicompax$4,180
Naos Pro Automatik$755

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
43mm
38mm
Thickness
14.5mm
9mm
Lug-to-Lug
42.4mm
Lug Width
22mm
20mm
Water Resistance
200m
50m

Crystal & Dial

2 specs
Dial Color
Original
Lume
None
Luminova Punkte

Movement

3 specs
Caliber
Sellita SW510 BH a
Miyota 9015
Power Reserve
58h
42h
Jewels
27

Pricing

1 specs
MSRP
$4,180
$755

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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.

Sternglas Naos Pro Automatik

The Sternglas Naos Pro Automatik is praised for its slim 9mm case and Bauhaus dial design, featuring clear hour markers and a framed date window. Owners note the upgraded Miyota 9015 movement with a 4Hz beat rate. Accuracy is reported as -10/+30 seconds per day, which is not ideal for precision enthusiasts. The five-link bracelet's lack of fitted end-links and the optional bracelet's chunkiness are flagged as areas lacking refinement. Overall, reviewers highlight the Sternglas Naos Pro Automatik's improved wearability and premium feel at its price point.

From video reviewers

The Bauhaus design is a strength. The value proposition is a weakness.

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