Side by side

Oak & Oscar The Humboldt ExP-02vsFortis Flieger F-43 Bicompax

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

The Humboldt ExP-02
Oak & OscarThe Humboldt ExP-02
MSRP $2,400
Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180

At a glance

15 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Flieger F-43 Bicompax43mm
Power Reserve
The Humboldt ExP-0256h
Flieger F-43 Bicompax58h
Water Resistance
The Humboldt ExP-02200m
Flieger F-43 Bicompax200m
MSRP
The Humboldt ExP-02$2,400
Flieger F-43 Bicompax$4,180

Full specifications

Case

7 specs
Category
Tool
Chronograph
Diameter
39.5mm
43mm
Thickness
12.4mm
14.5mm
Lug-to-Lug
46.8mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Caseback
Display
Solid

Crystal & Dial

3 specs
Crystal Shape
Double-domed
Flat
Dial Color
Grey
Original
Lume
Super-LumiNova BGW9
None

Movement

4 specs
Caliber
Sellita SW300
Sellita SW510 BH a
Power Reserve
56h
58h
Jewels
25
27
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$4,180

Follow this matchup

Get a note when Oak & Oscar The Humboldt ExP-02 vs Fortis Flieger F-43 Bicompax 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.

Oak & Oscar The Humboldt ExP-02

Oak & Oscar The Humboldt ExP-02 is a 39.5mm stainless steel tool watch featuring a unique, layered aluminum "ghost dial" for legibility and 200m water resistance, powered by a Sellita SW300 movement. Its appeal is limited by a US$2,550 price and an extremely limited production of 20 pieces, with its experimental dial construction done in Chicago. Overall, reviewers highlight the endearing dial and in-house bezel production as key features of the Oak & Oscar Humboldt ExP-02.

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.

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.