Side by side

Fortis Flieger F-43 BicompaxvsPhoibos Leviathan

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
Leviathan
PhoibosLeviathan
MSRP $309

At a glance

12 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Leviathan45mm
Power Reserve
Flieger F-43 Bicompax58h
Leviathan40h
Water Resistance
Flieger F-43 Bicompax200m
Leviathan500m
MSRP
Flieger F-43 Bicompax$4,180
Leviathan$309

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
43mm
45mm
Thickness
14.5mm
15.5mm
Lug-to-Lug
54mm
Water Resistance
200m
500m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Original
Blue
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW510 BH a
NH 35
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$309

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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.

Phoibos Leviathan

Owners widely report the Phoibos Leviathan offers a vintage experience at an affordable price due to its proportions and conservative design. However, the watch is considered well-made and sturdy but quite heavy, with a 45mm x 54mm lug-to-lug case and a 15.5mm thickness, leading some owners to replace the stock band. On balance, owners rate the Phoibos Leviathan highly for its vintage feel and sturdy build at its price point.

From video reviewers

The watch features 500m water resistance and a Seiko NH35 automatic movement. The case size is a point of contention, with reviewers noting it is substantial and may overwhelm smaller wrists, while others highlight a 40mm case size as an improvement.

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