Side by side

Borealis Watch Co. Porto CovovsIslander 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.

Porto Covo
Borealis Watch Co.Porto Covo
MSRP $415
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

17 of 29 specs differ
Diameter
Porto Covo40mm
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-30240mm
Power Reserve
Porto Covo40h
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302
Water Resistance
Porto Covo300m
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302200m
MSRP
Porto Covo$415
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302$649

Full specifications

Case

7 specs
Diameter
40mm
40mm
Thickness
11.6mm
12.1mm
Lug-to-Lug
42.5mm
0mm
Lug Width
20mm
20mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid
Screw-down

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Black
Indices
Applied
Lume
BGW9
None

Movement

4 specs
Caliber
Miyota 9039
Miyota 9015
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$415
$649

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Get a note when Borealis Watch Co. Porto Covo 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.

Borealis Watch Co. Porto Covo

The Borealis Porto Covo is widely praised for its 39mm size and unique cantilevered indices that create a 3D effect and depth. Owners note the indices' floating appearance is a well-executed design. One owner reported poor accuracy and a terse customer service response, while another wished for a 42mm size option. The $395 price is considered reasonable for a microbrand, though some feel it does not compare favorably to AliExpress options. Overall, owners appreciate the Borealis Porto Covo for its distinctive dial design and wearable 39mm case size.

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.

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