Watch Almanac
Islander

Greenport 39mm

Ref. ISL-250

Case diameter
39 mm
Manufacturer spec
Lug-to-lug
47 mm
Manufacturer spec
Thickness
13.5 mm
Manufacturer spec
Lug width
20 mm
Manufacturer spec

Retail price $395 (US, Oct 2026)

Ideal fit
Wrist flat: 55.1 mmLug-to-lug: 47 mm

How the Greenport 39mm wears

Its lugs add 8 mm to the 39 mm case, close to the 7.1 mm typical across the almanac, so its diameter is a fair guide to how it wears.

On our fit model it sits best on wrists from 6.5" to 7.75" (16.5–19.7 cm); below 6.5" the lugs start to reach the edge of the wrist.

At 13.5 mm thick it is thicker than 72% of the 79 other dive watches we've measured, so expect it to sit tall on the wrist.

Its 20 mm lug width is one of the most common strap sizes; 104 other watches here share it, so aftermarket straps are easy to find.

Will the Greenport 39mm fit your wrist?

With a 47 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.

WristFlat width (est.)Fit
6"47.2 mmLugs overhang
6.5"51.2 mmIdeal fit
7"55.1 mmIdeal fit
7.5"59.1 mmIdeal fit
8"63 mmWears small

Specifications

Reference
ISL-250
Collection
Greenport
Status
In production
Case material
stainless steel
Crystal
sapphire
Water resistance
200 m
Bezel
bidirectional 24-hour dual-time, ceramic insert
Dial
black with orange accents
Strap / bracelet
solid-link steel bracelet, 20-18mm taper, micro-adjust clasp
Style
Dive, Everyday

Movement

Caliber
Miyota Miyota 8205
Type
automatic
Power reserve
42 hours
Frequency
21,600 vph (3 Hz)
Jewels
21
Accuracy
-20/+40 s/day

Takes 20 mm straps. See other 20 mm watches and straps.

Watches that wear the same size

Other watches within 1.5 mm of its lug-to-lug.

Same 20 mm lug width

All 20 mm watches

These take the same straps as the Greenport 39mm.

Sources