Side by side

Fortis Flieger F-43 BicompaxvsZelos Spearfish Dual Time

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
Spearfish Dual Time
ZelosSpearfish Dual Time
MSRP $2,199

At a glance

13 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
Spearfish Dual Time40mm
Power Reserve
Flieger F-43 Bicompax58h
Spearfish Dual Time40h
Water Resistance
Flieger F-43 Bicompax200m
Spearfish Dual Time100m
MSRP
Flieger F-43 Bicompax$4,180
Spearfish Dual Time$2,199

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
43mm
40mm
Thickness
14.5mm
10mm
Lug-to-Lug
40mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Original
Ti - Meteorite

Movement

3 specs
Caliber
Sellita SW510 BH a
Sellita SW300 + TT651
Power Reserve
58h
40h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$2,199

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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.

Zelos Spearfish Dual Time

Owners widely praise the Zelos Spearfish Dual Time for its attractive design and the well-executed big date complication. The watch is described as a non-attention-seeking option that looks awesome, with a thickness of 12mm including the crystal and 10mm without. One owner found the $1900 price tag too expensive and uncharacteristic for the brand. On balance, owners rate the Zelos Spearfish Dual Time highly for its attractive design and the well-executed big date complication.

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