Side by side

Fortis Flieger F-43 BicompaxvsSternglas Naos Großdatum

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 Großdatum
SternglasNaos Großdatum
MSRP $323

At a glance

13 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Naos Großdatum38mm
Power Reserve
Flieger F-43 Bicompax58h
Naos Großdatum
Water Resistance
Flieger F-43 Bicompax200m
Naos Großdatum50m
MSRP
Flieger F-43 Bicompax$4,180
Naos Großdatum$323

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
43mm
38mm
Thickness
14.5mm
10mm
Lug-to-Lug
42mm
Lug Width
22mm
20mm
Water Resistance
200m
50m

Crystal & Dial

2 specs
Dial Color
Original
Lume
None
Luminova Punkten

Movement

4 specs
Caliber
Sellita SW510 BH a
Seiko VJ76
Type
Automatic
Quartz
Power Reserve
58h
Jewels
27

Pricing

1 specs
MSRP
$4,180
$323

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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 Großdatum

The Sternglas Naos Großdatum is praised for its Bauhaus aesthetic and value, with one owner finding it an affordable alternative to other designs. However, some owners report it feels underwhelming and cheap, with a printed-on face, small font, and toy-like hands, and find the strap to be of poor quality. The watch features a 38mm stainless steel case, an Alabaster dial with beige LumiNova, and a Seiko TMI VJ76 quartz movement rated for -20/+20 seconds per month. On balance, owners and reviewers are divided, with the primary point of contention being the perceived quality and aesthetic execution of the Sternglas Naos Großdatum.

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