Side by side

Fortis Flieger F-43 BicompaxvsSpinnaker Cahill Automatic

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
Cahill Automatic
SpinnakerCahill Automatic
MSRP $350

At a glance

10 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Cahill Automatic42mm
Power Reserve
Flieger F-43 Bicompax58h
Cahill Automatic40h
Water Resistance
Flieger F-43 Bicompax200m
Cahill Automatic200m
MSRP
Flieger F-43 Bicompax$4,180
Cahill Automatic$350

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
43mm
42mm
Thickness
14.5mm
13.7mm
Lug-to-Lug
51mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Original
Green

Movement

3 specs
Caliber
Sellita SW510 BH a
SII NH35A
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$350

Follow this matchup

Get a note when Fortis Flieger F-43 Bicompax vs Spinnaker Cahill Automatic 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.

Spinnaker Cahill Automatic

Owners widely praise the Spinnaker Cahill Automatic for its attractive vintage-inspired design, comfortable wearability on smaller wrists, and good timekeeping, with one owner specifically noting the large "maxi" indices and NATO strap as highlights. However, some find the lume application uneven and note the use of a mineral crystal. A significant concern raised by one owner is a report of internal component failures and a perceived lack of quality control within the brand. On balance, the Spinnaker Cahill Automatic is well-regarded by owners for its style and value, particularly at specific price points, despite some noted manufacturing inconsistencies.

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.