Side by side

Fortis Stratoliner S-41vsIslander Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

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
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
IslanderIslander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
MSRP $379

At a glance

14 of 29 specs differ
Diameter
Stratoliner S-4141mm
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-31640mm
Power Reserve
Stratoliner S-4160h
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
Water Resistance
Stratoliner S-41200m
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316200m
MSRP
Stratoliner S-41$5,450
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316$379

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
41mm
40mm
Lug-to-Lug
48mm
Lug Width
21mm
20mm
Finish
Brushed and polished
Caseback
Solid
Screw-down

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
White
Indices
Applied

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
Seiko NH34
Beat Rate
28,800 vph
0 vph
Power Reserve
60h
0h
Jewels
36
0

Pricing

1 specs
MSRP
$5,450
$379

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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.

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 offers excellent value at $329 MSRP, featuring a handsome anthracite dial with applied indices, a sapphire crystal, and a quality 120-click unidirectional bezel. Owners highlight the NH34 movement and well-proportioned 40x48x20mm case. Overall, owners rate the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 highly for its value and feature set at the price point.

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