Side by side

Fortis Stratoliner S-41vsSpinnaker Challenger Automatic

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
Challenger Automatic
SpinnakerChallenger Automatic
MSRP $289

At a glance

11 of 29 specs differ
Diameter
Stratoliner S-4141mm
Challenger Automatic42mm
Power Reserve
Stratoliner S-4160h
Challenger Automatic40h
Water Resistance
Stratoliner S-41200m
Challenger Automatic200m
MSRP
Stratoliner S-41$5,450
Challenger Automatic$289

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
41mm
42mm
Thickness
14mm
19mm
Lug-to-Lug
49.5mm
Lug Width
21mm
22mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
White
Blue

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
SII NH35A
Power Reserve
60h
40h
Jewels
36
25

Pricing

1 specs
MSRP
$5,450
$289

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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.

Spinnaker Challenger Automatic

The Spinnaker Challenger Automatic is widely praised for its fun, playful design, solid build quality, and satisfying bezel action. Owners appreciate the comfortable 42mm DLC-coated case and the thoughtful integration of the Popeye theme, with the character serving as the hour and minute hands. Reviewers note the reliable Seiko NH35 movement and 300m water resistance. Some owners find the blue lume weaker than expected, and the ultra-domed sapphire crystal presents challenges for photography. The thick rubber strap is also cited as difficult to manage. Overall, owners and reviewers rate the Spinnaker Challenger Automatic highly for its unique character integration and solid dive watch fundamentals at its price point.

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