Side by side

Zelos Aventurine (sellita)vsFortis Flieger F-43 Bicompax

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

Aventurine (sellita)
ZelosAventurine (sellita)
MSRP $699
Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180

At a glance

14 of 29 specs differ
Diameter
Aventurine (sellita)39mm
Flieger F-43 Bicompax43mm
Power Reserve
Aventurine (sellita)40h
Flieger F-43 Bicompax58h
Water Resistance
Aventurine (sellita)50m
Flieger F-43 Bicompax200m
MSRP
Aventurine (sellita)$699
Flieger F-43 Bicompax$4,180

Full specifications

Case

7 specs
Category
Dress
Chronograph
Diameter
39mm
43mm
Thickness
7.6mm
14.5mm
Lug-to-Lug
39mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Aventurine (Sellita)
Original

Movement

4 specs
Caliber
ETA/Peseux 7001
Sellita SW510 BH a
Type
Manual
Automatic
Power Reserve
40h
58h
Jewels
25
27

Pricing

1 specs
MSRP
$699
$4,180

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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.

Zelos Aventurine (sellita)

Zelos Aventurine (sellita) owners widely praise the dial's star-like appearance and the bracelet's light-catching qualities. Some owners note sharp edges on the bracelet. The manual-wind movement is cited as inconvenient for resetting the date and moon phase. Overall, owners rate the Zelos Aventurine (sellita) highly for its gorgeous aventurine dial.

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.

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