Islander · Microbrand · United States

Islander Bayport Automatic Dive Watch

In production · Diver

Islander Bayport with blue wave dial on H-link bracelet
Photo: Long Island Watch
  • Islander Bayport with green wave dial
  • Islander Bayport 40mm with black dial and black ceramic bezel on H-link bracelet
  • Islander Bayport 40mm with blue dial and blue ceramic bezel on H-link bracelet
  • Islander Bayport 40mm with brown dial and brown ceramic bezel on H-link bracelet
  • Islander Bayport 40mm with green dial and green ceramic bezel on H-link bracelet
  • Islander Bayport 40mm with grey dial and grey ceramic bezel on H-link bracelet
  • Islander Bumble-Bee Bayport 40mm with yellow dial and black and yellow bezel on H-link bracelet
  • Islander Ghost Bayport 40mm with white dial and white bezel on H-link bracelet
  • Islander Bayport 40mm with purple dial, gilt hands and markers and purple bezel on H-link bracelet
From $299 to $349
  • Seiko NH35A
  • 40 mm × 13.5 mm
  • Sapphire crystal
  • 200 m water resistance

Movement

Type
Automatic
Tier
Entry
Complications
Date
Frequency
21,600 bph
Power reserve
41 h
Hacking
Yes
Accuracy (factory)
-20 / +40 s/day

Case

Diameter
40 mm
Lug to lug
48 mm
Thickness
13.5 mm
Lug width
20 mm
Material
Steel
Hardening
—
Water resistance
200 m
Crown
Screw-down
Case back
Solid
Bezel
Unidirectional, 120 clicks, 60-minute dive, ceramic insert, lumed

Crystal & dial

Crystal
Sapphire
Shape
Flat
Anti-reflective
Inner
Lume
Super-LumiNova (C3 on the bezel)

Bracelet & clasp

Style
H-link
Links per row
—
Solid end links
—
Solid links
—
Link attachment
Screws
Taper
—
Quick release
—
Half links
—
Clasp
—
Micro-adjust
Tool-free
Diver extension
—

Weight

Head only
—
On bracelet
—
On strap
—
Stated weight (basis not given)
180 g

Prices

VariantConfigurationTypePriceUSDAs ofSource
Blue Wave dial—Msrp349 USD$3492026-10-20link
Maroon Wave dial—Msrp349 USD$3492026-10-20link
Green Wave dial—Msrp349 USD$3492026-10-20link
Silver-White Wave dial—Msrp349 USD$3492026-10-20link
Warm Grey Wave dial—Msrp349 USD$3492026-10-20link
Black dial—Msrp299 USD$2992026-10-23link
Blue dial—Msrp299 USD$2992026-10-23link
Brown dial—Msrp325 USD$3252026-10-23link
Green dial—Msrp299 USD$2992026-10-23link
Grey dial—Msrp325 USD$3252026-10-23link
Bumble-Bee Yellow dial—Msrp325 USD$3252026-10-23link
Ghost White dial—Msrp325 USD$3252026-10-23link
Purple Gilt dial—Msrp325 USD$3252026-10-23link

Variants

NameReferenceDialStatus
Blue Wave dialISL-311blue—
Maroon Wave dialISL-310maroon—
Green Wave dialISL-312green—
Silver-White Wave dialISL-313silver-white—
Warm Grey Wave dialISL-314grey—
Black dialISL-119blackDiscontinued
Blue dialISL-120blueDiscontinued
Brown dialISL-121brownDiscontinued
Green dialISL-122greenDiscontinued
Grey dialISL-123greyDiscontinued
Bumble-Bee Yellow dialISL-172yellowDiscontinued
Ghost White dialISL-173whiteDiscontinued
Purple Gilt dialISL-174purpleDiscontinued

About this entry

84% of key specs known. Missing: hardening, bracelet links, end links.

Main specs are for the third version of the Bayport ("back for the third time"), with partially skeletonised hands and a wave-texture dial. Seiko NH35 with date at 6 (at 3 on the earlier versions below), 200m, 120-click unidirectional bezel with a sloped ceramic insert lumed with C3 Super-LumiNova; dial markers are "generously coated with Super-LumiNova" (grade not stated). Case "stainless steel", grade not stated. Caseback described as "solid embossed"; screw-down not stated. Weight 180g is the spec-table figure; not stated what was weighed. Bracelet: H-link with negative end links, sized with screws, "ratcheting micro-adjust clasp, no tools needed" (positions, taper and whether it adjusts on the wrist not stated; recorded as toolless). Solid links/end links not stated. ISL-313 was sold out on 2026-10-20; the other four dials were in stock. Earlier versions, sold as "Bayport 40mm" (ISL-119 to 123 and ISL-172 to 174, all tagged "Discontinued" and sold out on 2026-10-23; prices are the last listed ones), have the same 40 x 13.5mm case, 48mm lug to lug, NH35, 200m, screw-down crown, flat sapphire with AR on the underside and 120-click bezel with a C3-lumed sloped ceramic insert, but a colour-matched date at 3 with an applied frame, applied indices, C3 on the hands and markers (ISL-173 "Ghost": BGW9 markers, C3 hands), and an H-link bracelet "with all solid links" (spec table) sized with screws, tapering to 18mm at a 3-position micro-adjust push-button deployant clasp with security foldover; their spec table lists 172g. Applied indices and date frame are yellow gold on ISL-174 (with yellow gold hands), rose gold on ISL-121, black on ISL-172 and ISL-173, and silver on the others.

Last verified: 2026-10-20. Edit or correct this entry.

Sources