Side by side

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

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
HYDROCONQUEST
LonginesHYDROCONQUEST
MSRP $2,350

At a glance

15 of 29 specs differ
Diameter
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-30039mm
HYDROCONQUEST39mm
Power Reserve
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
HYDROCONQUEST40h
Water Resistance
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300200m
HYDROCONQUEST300m
MSRP
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300$399
HYDROCONQUEST$2,350

Full specifications

Case

6 specs
Thickness
13mm
12.2mm
Lug-to-Lug
0mm
48.1mm
Lug Width
20mm
19mm
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Screw-down
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Grey
Indices
Applied

Movement

4 specs
Caliber
Miyota 8205
L888.5
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
25

Pricing

1 specs
MSRP
$399
$2,350

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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.

Longines HYDROCONQUEST

Owners widely praise the Longines HydroConquest's dial and finishing, with one owner finding it superior to a Rolex Submariner. The movement is noted as well-regulated, losing about 2 seconds per day. The watch is considered a versatile everyday or business-casual option, offering good value. However, owners criticize the bracelet for lacking tool-less micro-adjustment and describe winding the crown as a nuisance. Some in the line report tiny GMT markers that are difficult to read and the absence of a quick date adjust feature. Overall, owners rate the Longines HydroConquest highly for its finishing and value.

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