Side by side

Fortis Stratoliner S-41vsZelos Thresher 44

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
Thresher 44
ZelosThresher 44
MSRP $549

At a glance

13 of 29 specs differ
Diameter
Stratoliner S-4141mm
Thresher 4444mm
Power Reserve
Stratoliner S-4160h
Thresher 4440h
Water Resistance
Stratoliner S-41200m
Thresher 44500m
MSRP
Stratoliner S-41$5,450
Thresher 44$549

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
41mm
44mm
Thickness
14mm
12.8mm
Lug-to-Lug
44mm
Lug Width
21mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
500m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Grey

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
Miyota 9015
Power Reserve
60h
40h
Jewels
36
25

Pricing

1 specs
MSRP
$5,450
$549

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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.

Zelos Thresher 44

Owners widely praise the Zelos Thresher 44, with one owner noting its finish has proven remarkably scratch-resistant. However, one owner found the finishing on their hammered grey variant not as well done as expected. The Zelos Thresher 44 with an agate dial sold out in 90 seconds, with one owner receiving theirs and noting the bracelet was fully wrapped. Overall, owners rate the Zelos Thresher 44 highly for its desirability and scratch-resistant finish.

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