Side by side

Fortis Flieger F-43 BicompaxvsLongines PRIMALUNA

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
PRIMALUNA
LonginesPRIMALUNA
MSRP $1,950

At a glance

22 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
PRIMALUNA30mm
Power Reserve
Flieger F-43 Bicompax58h
PRIMALUNA40h
Water Resistance
Flieger F-43 Bicompax200m
PRIMALUNA30m
MSRP
Flieger F-43 Bicompax$4,180
PRIMALUNA$1,950

Full specifications

Case

8 specs
Category
Chronograph
Dress
Diameter
43mm
30mm
Thickness
14.5mm
8.3mm
Lug-to-Lug
37mm
Lug Width
22mm
7mm
Finish
Brushed and polished
Water Resistance
200m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Original
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

8 specs
Caliber
Sellita SW510 BH a
L257.2
Type
Automatic
Quartz
Beat Rate
28,800 vph
25,200 vph
Power Reserve
58h
40h
Jewels
27
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$4,180
$1,950

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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.

Longines PRIMALUNA

Owners widely praise the Longines PRIMALUNA for its attractive style and understated 26.5mm size, with some preferring the automatic for its craftsmanship and heirloom quality. The redesigned 34mm model features an automatic movement, date complication, and polished case design, available in steel or bi-metal with various dial and strap options. Accuracy averages a loss of 1.3 seconds per day across six positions, running 3-4 seconds slower on the wrist, which is within COSC standards. Prices range from EUR 2,850 to EUR 6,600. Overall, owners rate the Longines PRIMALUNA highly for its appealing design and reliable automatic movement.

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