Side by side

Fortis Flieger F-43 BicompaxvsNivada Grenchen F77 MK1

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
F77 MK1
Nivada GrenchenF77 MK1
MSRP $1,560

At a glance

16 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
F77 MK137mm
Power Reserve
Flieger F-43 Bicompax58h
F77 MK138h
Water Resistance
Flieger F-43 Bicompax200m
F77 MK1100m
MSRP
Flieger F-43 Bicompax$4,180
F77 MK1$1,560

Full specifications

Case

8 specs
Category
Chronograph
Sport
Diameter
43mm
37mm
Thickness
14.5mm
12.1mm
Lug-to-Lug
45mm
Material
Stainless Steel
Stainless Steel/Titanium/Ceramic
Finish
Brushed and polished
Brushed + Polished + Satin
Water Resistance
200m
100m
Caseback
Solid
Titanium Grade 5

Crystal & Dial

2 specs
Dial Color
Original
Meteorite Dial, Super Lum. White Dots, Shiny Light Gun Color Applied Indexes
Lume
None
x1

Movement

5 specs
Caliber
Sellita SW510 BH a
Soprod Newton P092
Beat Rate
28,800 vph
4 vph
Power Reserve
58h
38h
Jewels
27
25
Complications
None
GMT

Pricing

1 specs
MSRP
$4,180
$1,560

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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.

Nivada Grenchen F77 MK1

Owners widely praise the Nivada Grenchen F77 MK1 for its vintage charm, Genta-inspired design with unique character, and comfortable 37-38mm wearability on average wrists, highlighting its legible basket-weave dial and solid case build with excellent crown grip. The integrated bracelet's connection to the case is noted to increase effective lug-to-lug distance, and one owner criticizes the crown action as stiff and gritty. The Soprod P024 movement provides a 38-hour power reserve. On balance, owners and reviewers find the Nivada Grenchen F77 MK1 a compelling value proposition due to its distinctive dial and overall build quality, despite some reservations about its winding feel and price.

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