Side by side

Seestern Sub 300 V4vsIslander Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300

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

Sub 300 V4
SeesternSub 300 V4
MSRP $10
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

At a glance

15 of 29 specs differ
Diameter
Sub 300 V442mm
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-30039mm
Power Reserve
Sub 300 V441h
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
Water Resistance
Sub 300 V4200m
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300200m
MSRP
Sub 300 V4$10
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300$399

Full specifications

Case

5 specs
Diameter
42mm
39mm
Lug-to-Lug
46mm
0mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Sandblasted
Caseback
Solid screw-down
Screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
Dial Color
Orange
Indices
Applied
Lume
Japan Lume (blue glow)
None

Movement

5 specs
Caliber
Seiko NH35A
Miyota 8205
Beat Rate
21,600 vph
0 vph
Power Reserve
41h
0h
Jewels
24
0
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$10
$399

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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.

Seestern Sub 300 V4

Owners widely praise the Seestern Sub 300 V4 for its terrific fit and finish and surprising little touches at its $179 price, noting top-notch case, dial, bezel, and crystal. The bracelet is considered nice enough for the price point, and the watch is powered by the solid and reliable Seiko NH35 movement. Some owners report that the polished sides of the case show signs of wear. Overall, owners rate the Seestern Sub 300 V4 highly for its excellent case, dial, and bezel finishing at the price.

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.

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