Side by side
Alexander James Watches A4 Prelude 37 GMT Light BluevsIslander Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
A4 Prelude 37 GMT Light Blue37.4mm
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-6338mm
Power Reserve
A4 Prelude 37 GMT Light Blue40h
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63—
Water Resistance
A4 Prelude 37 GMT Light Blue200m
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63200m
MSRP
A4 Prelude 37 GMT Light Blue$325
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63$429
Full specifications
Case
6 specsCategory
—
Diver
Diameter
37.4mm
38mm
Thickness
12.1mm
13mm
Lug-to-Lug
46mm
44.5mm
Finish
Brushed and polished
—
Caseback
Solid
Engraved screw-in back
Crystal & Dial
4 specsCrystal Shape
Flat
Double Domed
AR Coating
Inner
Yes
Dial Color
—
—
Indices
Applied
—
Movement
4 specsCaliber
Seiko NH34
Seiko NH36
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Pricing
1 specsMSRP
$325
$429
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