Side by side

Islander Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300vsTornek-Rayville Blakjak 12-hr GMT

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
Blakjak 12-hr GMT
Tornek-RayvilleBlakjak 12-hr GMT
MSRP $895

At a glance

16 of 29 specs differ
Diameter
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-30039mm
Blakjak 12-hr GMT42.5mm
Power Reserve
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
Blakjak 12-hr GMT42h
Water Resistance
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300200m
Blakjak 12-hr GMT200m
MSRP
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300$399
Blakjak 12-hr GMT$895

Full specifications

Case

6 specs
Diameter
39mm
42.5mm
Thickness
13mm
13.2mm
Lug-to-Lug
0mm
49mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Caseback
Screw-down
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Yes
Dial Color
Black
Indices
Applied
Lume
None
Superluminova

Movement

4 specs
Caliber
Miyota 8205
SII NH36
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
42h
Jewels
0
25

Pricing

1 specs
MSRP
$399
$895

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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.

Tornek-Rayville Blakjak 12-hr GMT

The Tornek-Rayville Blakjak 12-hr GMT is a 42.5mm stainless steel watch featuring a DLC-coated bezel, sapphire crystal, and a matte black dial with 12- and 24-hour scales. It is powered by a Seiko SII NH36 automatic movement, offering a 41-hour power reserve, and boasts 200 meters of water resistance. The dial includes a day/date complication and Super-LumiNova BGW9 lume. Overall, owners and reviewers highlight its robust build and functional military-inspired design as key strengths.

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