Islander Greenport 39mm Diver with Black and White DialvsDOXA SUB 250T GMT

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Islander Greenport 39mm Diver with Black and White Dial at true scale

Greenport 39mm Diver with Black and White Dial

DOXA SUB 250T GMT at true scale

SUB 250T GMT

Diameter

39mm

40mm

Thickness

13mm

n/a

Water Resistance

200m

250m

highest

Power Reserve

n/a

50h

MSRP

$395

lowest

$2,790

Movement

Miyota 8205

Automatic

Case

6 specs
Diameter
39mm
40mm
Thickness
13mm
n/a
Lug-to-Lug
n/a
n/a
Lug Width
20mm
n/a
Water Resistance
200m
250m
Caseback
Screw-down
n/a

Crystal & Dial

2 specs
AR Coating
Underside
Yes
Dial Color
n/a
Aquamarine

Movement

2 specs
Caliber
Miyota 8205
n/a
Power Reserve
0h
50h

Pricing

1 specs
MSRP
$395
$2,790
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Islander Greenport 39mm Diver with Black and White Dial

The Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300 is praised for its 39mm size, which owners find fits well. Its bi-directional dual time bezel is noted as a useful feature for tracking different time zones, and the dial layout is well-liked. One owner specifically appreciates the lumed ceramic bezel and the slightly domed sapphire crystal. The screw-down crown is also considered a nice touch. Overall, owners rate the Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300 highly for its wearability and functional bezel at the price.

DOXA SUB 250T GMT

The DOXA SUB 250T GMT is widely praised for its compact 40mm case, slim 10.85mm thickness, and sub-43mm lug-to-lug measurement, making it exceptionally comfortable and wearable. Reviewers highlight its functional GMT complication, precise bezel action, and the classic Doxa design language, noting its competitive pricing around €2,550 or $2,450. The skeletonized GMT hand is a point of discussion, with some finding it quirky or less intuitive, though others note it looks better in person and is easy to ignore for dive purposes. The watch is available in nine dial colors, with specific limited editions carrying a slight premium. Overall, reviewers rate the DOXA SUB 250T GMT highly for its wearable dimensions and value proposition as a capable dive watch with added GMT functionality.

From video reviewers

The watch's refined and wearable 42mm case size is a strength. Reviewers noted the iconic Doxa aesthetic combined with GMT functionality. No shared weaknesses were identified.

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