Side by side

Fortis Stratoliner S-41vsSeiko Prospex Rotocall

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
Prospex Rotocall
SeikoProspex Rotocall
MSRP $550

At a glance

13 of 29 specs differ
Diameter
Stratoliner S-4141mm
Prospex Rotocall37mm
Power Reserve
Stratoliner S-4160h
Prospex Rotocall40h
Water Resistance
Stratoliner S-41200m
Prospex Rotocall100m
MSRP
Stratoliner S-41$5,450
Prospex Rotocall$550

Full specifications

Case

6 specs
Category
Chronograph
Sport
Diameter
41mm
37mm
Thickness
14mm
10.6mm
Lug-to-Lug
43.5mm
Lug Width
21mm
20mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Hardlex
Dial Color
White
Black

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
A824
Type
Automatic
Quartz
Power Reserve
60h
40h
Jewels
36
25

Pricing

1 specs
MSRP
$5,450
$550

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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.

Seiko Prospex Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

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