Side by side

Fortis Flieger F-43 BicompaxvsMaen Grand Tonneau Ultra Thin

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
Grand Tonneau Ultra Thin
MaenGrand Tonneau Ultra Thin
MSRP $1,519

At a glance

11 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Grand Tonneau Ultra Thin34mm
Power Reserve
Flieger F-43 Bicompax58h
Grand Tonneau Ultra Thin40h
Water Resistance
Flieger F-43 Bicompax200m
Grand Tonneau Ultra Thin50m
MSRP
Flieger F-43 Bicompax$4,180
Grand Tonneau Ultra Thin$1,519

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
43mm
34mm
Thickness
14.5mm
6.4mm
Lug Width
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
50m

Crystal & Dial

1 specs
Dial Color
Original
MNL.04

Movement

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

Pricing

1 specs
MSRP
$4,180
$1,519

Follow this matchup

Get a note when Fortis Flieger F-43 Bicompax vs Maen Grand Tonneau Ultra Thin gets more votes, a community discussion, or a price drop. No account needed.

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.

Maen Grand Tonneau Ultra Thin

Owners widely report the Maen Grand Tonneau Ultra Thin features a La Joux-Perret D101 manual-wind movement and a double-layer enamel dial. Some owners criticize the bracelet design and find the dial too small and lacking indices. One owner describes the Maen Grand Tonneau Ultra Thin as "hideous with a good movement." On balance, owners are divided on the Maen Grand Tonneau Ultra Thin, with some appreciating its movement and dial while others find its design unappealing.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.