Side by side

Fortis Stratoliner S-41vsMarathon Steel Navigator SSNAV Auto

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
Steel Navigator SSNAV Auto
MarathonSteel Navigator SSNAV Auto
MSRP $1,300

At a glance

11 of 29 specs differ
Diameter
Stratoliner S-4141mm
Steel Navigator SSNAV Auto41mm
Power Reserve
Stratoliner S-4160h
Steel Navigator SSNAV Auto40h
Water Resistance
Stratoliner S-41200m
Steel Navigator SSNAV Auto60m
MSRP
Stratoliner S-41$5,450
Steel Navigator SSNAV Auto$1,300

Full specifications

Case

6 specs
Category
Chronograph
Pilot
Thickness
14mm
11.5mm
Lug-to-Lug
48mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
60m

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
Sellita SW200-1
Power Reserve
60h
40h
Jewels
36
25

Pricing

1 specs
MSRP
$5,450
$1,300

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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.

Marathon Steel Navigator SSNAV Auto

The Marathon Steel Navigator SSNAV Auto is praised for its high-accuracy quartz movement, with owners noting its comfort and reliable performance. Reviewers highlight its functional tool-watch appeal, featuring a sandblasted steel case, tritium tubes for constant low-light visibility, and 100-meter water resistance. One owner finds the 41mm case runs a bit small. The Marathon Steel Navigator SSNAV Auto utilizes an ETA F06.412 quartz movement with a claimed accuracy of +/- 10 seconds per year and includes a GMT bidirectional bezel. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV Auto highly for its comfortable wear and dependable, high-accuracy quartz movement.

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