Side by side

Fortis Stratoliner S-41vsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

At a glance

12 of 29 specs differ
Diameter
Stratoliner S-4141mm
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm
Power Reserve
Stratoliner S-4160h
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h
Water Resistance
Stratoliner S-41200m
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m
MSRP
Stratoliner S-41$5,450
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150

Full specifications

Case

4 specs
Diameter
41mm
39.5mm
Thickness
14mm
12mm
Lug-to-Lug
44.5mm
Lug Width
21mm
20mm

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
6R55
Power Reserve
60h
72h
Jewels
36
24

Pricing

1 specs
MSRP
$5,450
$1,150

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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 SPEEDTIMER Mechanical Datsun 240Z Limited Edition

The Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition is praised for its vintage racing concept, applied markers, and dial that shifts from cream to silver with orange accents. Owners appreciate the Datsun logo, dual crowns, and internal countdown bezel, with some noting Seiko's finishing is top-notch. However, some find the dial text cluttered, particularly "automatic 3 days," and consider the price point too high. The watch features a 42mm black-coated stainless steel case, an external tachymeter bezel, and Seiko's 8R48 automatic chronograph movement with a 45-hour power reserve. On balance, owners rate the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition well for its unique vintage concept and quality finishing, though price remains a point of contention for some.

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