Side by side

Fortis Stratoliner S-41vsFears Onyx (collective Horology)

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

Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450
Onyx (collective Horology)
FearsOnyx (collective Horology)
MSRP $2,833

At a glance

13 of 29 specs differ
Diameter
Stratoliner S-4141mm
Onyx (collective Horology)39.5mm
Power Reserve
Stratoliner S-4160h
Onyx (collective Horology)40h
Water Resistance
Stratoliner S-41200m
Onyx (collective Horology)15m
MSRP
Stratoliner S-41$5,450
Onyx (collective Horology)$2,833

Full specifications

Case

7 specs
Category
Chronograph
Sport
Diameter
41mm
39.5mm
Thickness
14mm
20mm
Lug-to-Lug
46.95mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
15m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Onyx (Collective Horology)

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
La Joux-Perret G101
Power Reserve
60h
40h
Jewels
36
25

Pricing

1 specs
MSRP
$5,450
$2,833

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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 Stratoliner S-41

Owners widely praise the Fortis Stratoliner S-41 for its purpose-built design and outstanding details, particularly its space blue lume and bright orange date on the dial. Reviewers note the WERK 17 movement offers a 60-hour power reserve. However, the Fortis Stratoliner S-41's 41mm case thickness and lug-to-lug distance lead some to perceive it as wearing large, and the dial's small text and flat design are flagged as potential drawbacks. Overall, owners and reviewers highlight the Fortis Stratoliner S-41's unique design and innovative movement as its primary strengths.

Fears Onyx (collective Horology)

Owners widely praise the Fears Onyx (collective Horology) for its exquisite glossy black onyx dial, which displays microscopic striations under magnification. Reviewers note its thin case, under 10.5mm, and a balanced sporty-dressy aesthetic. Water resistance is rated at 150m by one source and 100m by another, and the bracelet features on-the-fly micro-adjustment. Some owners find the 39.5mm diameter slightly large for the style, and one source suggests it doesn't represent top value, though it remains competitive. Overall, owners rate the Fears Onyx highly for its unique stone dial and wearability.

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