Side by side

Islander Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300vsSugess Seestern S430 Titanium Diver

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

Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
IslanderIslander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
MSRP $399
Seestern S430 Titanium Diver
SugessSeestern S430 Titanium Diver
MSRP $299

At a glance

17 of 29 specs differ
Diameter
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-30039mm
Seestern S430 Titanium Diver40mm
Power Reserve
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
Seestern S430 Titanium Diver40h
Water Resistance
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300200m
Seestern S430 Titanium Diver200m
MSRP
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300$399
Seestern S430 Titanium Diver$299

Full specifications

Case

6 specs
Diameter
39mm
40mm
Thickness
13mm
12.5mm
Lug-to-Lug
0mm
46mm
Material
Stainless Steel
Titanium
Finish
Brushed and polished
Caseback
Screw-down
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Indices
Applied
Lume
None
Tritium

Movement

5 specs
Caliber
Miyota 8205
Seiko NH35
Beat Rate
0 vph
3 vph
Power Reserve
0h
40h
Jewels
0
25
Complications
None
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$399
$299

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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 Greenport 39mm Dive Watch with Black and White Dial #ISL-300

The Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300 is praised for its 39mm size and comfortable fit, with its bi-directional dual time bezel noted as a useful feature for tracking different time zones. Owners appreciate the lumed ceramic bezel and the slightly domed sapphire crystal. One owner specifically highlights the dial layout as a strong positive. The screw-down crown is also mentioned as a nice touch. On balance, owners rate the Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300 highly for its wearability and functional bezel.

Sugess Seestern S430 Titanium Diver

Owners widely praise the Sugess Seestern S430 Titanium Diver for its genuine titanium construction, making it extremely light and comfortable at 92 grams on a 6.7-inch wrist. The ceramic bezel is described as fantastic and mesmerizing to use, and the brushed finishing is noted as nice. The watch features an NH38 movement, which is appreciated for its lack of ghost date functionality. However, some owners find the price comparable to competitors and have noted issues with the clasp's fit, with some finding the existing holes insufficient and the rotating arm needing to bend. The crown unscrewing is not smooth, and the bezel action is described as gritty with uneven resistance. One owner reported a crown tube failure on a V1 model. Overall, owners rate the Sugess Seestern S430 Titanium Diver highly for its lightweight titanium build and excellent ceramic bezel, despite some concerns regarding the clasp design.

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