Side by side

Alexander James Watches A4 Prelude 37 GMT Light BluevsIslander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311

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

Add a watch
A4 Prelude 37 GMT Light Blue
Alexander James WatchesA4 Prelude 37 GMT Light Blue
MSRP $325
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
IslanderIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311
MSRP $399
Buy from Alexander James Watches ↗
Buy used on eBay ↗
Buy from Islander ↗
Buy used on eBay ↗

At a glance

13 of 29 specs differ
Diameter
A4 Prelude 37 GMT Light Blue37.4mm
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-31140mm
Power Reserve
A4 Prelude 37 GMT Light Blue40h
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311—
Water Resistance
A4 Prelude 37 GMT Light Blue200m
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311200m
MSRP
A4 Prelude 37 GMT Light Blue$325
Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311$399

Full specifications

Case

5 specs
Category
—
Diver
Diameter
37.4mm
40mm
Thickness
12.1mm
13.5mm
Lug-to-Lug
46mm
48mm
Finish
Brushed and polished
—

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
—
—
Indices
Applied
—

Movement

4 specs
Caliber
Seiko NH34
Seiko NH35
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$325
$399
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Maystone Watch Co Prosperity GMT
Maystone Watch Comicro

Prosperity GMT

5 variantsRef. prosperity-gmt-red-kite
38mm·Automatic·100m WR
$443MSRP
—Used
Zelos Swordfish 3
Zelosmicro

Swordfish 3

40/42mm
2 watches · 35 variantsSwordfish
40/42mm·Automatic·200m WR
$399MSRP
—Used
Filippo Loreti Watches Aquadiver GMT (NH34)
Filippo Loreti Watchesmicro

Aquadiver GMT (NH34)

3 variantsRef. aquadiver-gmt-automatic-black-red
40mm·Automatic·200m WR
$410MSRP
—Used
William Wood Fearless
William Woodmicro

Fearless

3 variantsFearless
39mm·Automatic·100m WR
$920MSRP
—Used
Sheffield 1A
Sheffieldmicro

1A

2 variantsRef. diver-1a-40mm-white
40mm·Automatic·200m WR
$223MSRP
—Used
Spinnaker Croft 39 GMT
Spinnakermicro

Croft 39 GMT

5 watches · 28 variantsCroft
39mm·Automatic·100m WR
$445MSRP
—Used
Redwood Watches Jetstream GMT
Redwood Watchesmicro

Jetstream GMT

3 variantsRef. jetstream-gmt-altitude-automatic
40mm·Automatic·300m WR
$419MSRP
—Used
Sheffield SCR
Sheffieldmicro

SCR

2 variantsRef. scr-grun
40mm·Automatic·200m WR
—MSRP
—Used
All alternatives to the A4 Prelude 37 GMT Light Blue →All alternatives to the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 →
Explore the full catalog

Follow this matchup

Get a note when Alexander James Watches A4 Prelude 37 GMT Light Blue vs Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsMaystone Watch Co Prosperity GMTFilippo Loreti Watches Aquadiver GMT (NH34)vsIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311Filippo Loreti Watches Aquadiver GMT AutomaticvsIslander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsSpinnaker Croft 39 GMTAlexander James Watches A4 Prelude 37 GMT Light BluevsZelos Swordfish 3Alexander James Watches A4 Prelude 37 GMT Light BluevsWilliam Wood Fearless
Edit this comparisonAdd another watchExplore more 36–41mm watches