Side by side

Islander Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323vsSinn U18

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

Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
IslanderIslander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
MSRP $449
U18
SinnU18
MSRP $3,488
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323

Owners widely praise the Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 for its stunning radiant blue dial and red seconds hand, with some noting its resemblance to a luxury model. The watch is frequently cited as offering excellent value for its price. Some owners express a dislike for the circle/triangle logo, while others appreciate the availability of both 38mm and 43mm size options. Overall, owners rate the Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 highly for its aesthetic appeal and value proposition.

Sinn U18

The Sinn U18 is praised for its unique deep blue/green dial with three-dimensional oxygen bubbles that change with light, and its comfortable, easily adjustable bracelet. Owners find the watch stunning and a piece of history, appreciating the refined hands. The Sinn U18 features a 44mm, 15.5mm thick case made from German submarine steel, offering a 2000-meter dive specification and Sinn's Ar-Dehumidifying technology, powered by a Sellita SW300-1 movement. The case thickness is apparent, and the watch comes as a complete set with box and papers for $3,000-$3,680. On balance, owners and reviewers rate the Sinn U18 highly for its striking dial and robust build.

At a glance

16 of 29 specs differ
Diameter
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-32342mm
U1844mm
Power Reserve
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
U1842h
Water Resistance
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323200m
U182,000m
MSRP
Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323$449
U18$3,488

Full specifications

Case

7 specs
Diameter
42mm
44mm
Thickness
14mm
15.5mm
Lug-to-Lug
0mm
Material
Stainless Steel
high-strength
Finish
Water Resistance
200m
2000m
Caseback
Screw-down

Crystal & Dial

4 specs
Crystal Shape
Domed
AR Coating
Underside
Dial Color
Black
Indices

Movement

4 specs
Caliber
Seiko NH38
SW300-1
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
42h
Jewels
0
25

Pricing

1 specs
MSRP
$449
$3,488
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.

Follow this matchup

Get a note when Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323 vs Sinn U18 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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