Side by side

Fortis Stratoliner S-41vsIslander Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302

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 Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302
IslanderIslander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302
MSRP $649

At a glance

16 of 29 specs differ
Diameter
Stratoliner S-4141mm
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-30240mm
Power Reserve
Stratoliner S-4160h
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302
Water Resistance
Stratoliner S-41200m
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302200m
MSRP
Stratoliner S-41$5,450
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302$649

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
41mm
40mm
Thickness
14mm
12.1mm
Lug-to-Lug
0mm
Lug Width
21mm
20mm
Finish
Brushed and polished
Caseback
Solid
Screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
White
Indices
Applied

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
Miyota 9015
Beat Rate
28,800 vph
0 vph
Power Reserve
60h
0h
Jewels
36
0

Pricing

1 specs
MSRP
$5,450
$649

Follow this matchup

Get a note when Fortis Stratoliner S-41 vs Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302 gets more votes, a community discussion, or a price drop. No account needed.

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 Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302

Owners widely praise the Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302 for its eye-catching degrading black dial and strong lume. Some owners note the bracelet's tight links and rough clasp edges as drawbacks, though one owner received a replacement bracelet that improved wearability. Opinions are split on the watch's design, with some finding it overdesigned and reminiscent of older Seiko mods, while others appreciate its originality and find it appealing, particularly at its discounted price. On balance, owners appreciate the Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302 for its unique dial and value, despite some reservations about the bracelet finishing.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.