Side by side

Islander Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302vsGrand Seiko SBGN027

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

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
SBGN027
Grand SeikoSBGN027
MSRP $3,700

At a glance

17 of 29 specs differ
Diameter
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-30240mm
SBGN02739mm
Power Reserve
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302
SBGN02740h
Water Resistance
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302200m
SBGN027200m
MSRP
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302$649
SBGN027$3,700

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
39mm
Thickness
12.1mm
12.3mm
Lug-to-Lug
0mm
45.9mm
Lug Width
20mm
19mm
Finish
Brushed and polished
Caseback
Screw-down
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Yes
Dial Color
Black
Indices
Applied

Movement

5 specs
Caliber
Miyota 9015
9F86
Type
Automatic
Quartz
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
25

Pricing

1 specs
MSRP
$649
$3,700

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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.

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.

Grand Seiko SBGN027

Owners widely praise the Grand Seiko SBGN027 for its exceptional Zaratsu polishing, compact 39mm size, and versatile monochrome aesthetic, noting its thin profile and suitability as a grab-and-go watch. The 9F quartz movement delivers highly accurate timekeeping, with one owner reporting +/- 10 seconds per year. However, some find the lume limited, the bracelet lacks micro-adjustments, and the GMT hand can be easily mistaken for the minute hand. One owner reported a black index on the bezel disappearing after a couple of months. On balance, owners rate the Grand Seiko SBGN027 highly for its premium finishing and accurate HAQ GMT movement in a wearable size.

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