Side by side

Islander Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300vsZelos Blacktip 41

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
Blacktip 41
ZelosBlacktip 41
MSRP $499

At a glance

16 of 29 specs differ
Diameter
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-30039mm
Blacktip 4141mm
Power Reserve
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
Blacktip 4140h
Water Resistance
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300200m
Blacktip 41200m
MSRP
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300$399
Blacktip 41$499

Full specifications

Case

6 specs
Diameter
39mm
41mm
Thickness
13mm
12mm
Lug-to-Lug
0mm
41mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Caseback
Screw-down
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Teal
Indices
Applied

Movement

4 specs
Caliber
Miyota 8205
Miyota 9015
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
25

Pricing

1 specs
MSRP
$399
$499

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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.

Zelos Blacktip 41

The Zelos Blacktip 41 is widely praised for its exceptional quality and value, featuring a titanium case, sapphire crystal, and a reliable Miyota 9015 movement. Owners and reviewers highlight its well-proportioned 41mm case with strong ergonomics, a 47.5mm lug-to-lug, and a 11.5mm thickness, making it a comfortable diver for many. The watch boasts eye-catching dials with grained textures and degrade effects, complemented by large applied indices, a lume-filled crown, and strong two-tone lume. The bezel action is described as having firm clicks with a slight return. The Miyota 9015 movement provides near-COSC accuracy and a 200m water resistance. On balance, owners and reviewers rate the Zelos Blacktip 41 highly for its superb value and well-executed dive watch features at its price point.

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