Side by side

Citizen Atomic Perpetual A-TvsIslander 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.

Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63
IslanderIslander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63
MSRP $429

At a glance

16 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-6338mm
Power Reserve
Atomic Perpetual A-T40h
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63
Water Resistance
Atomic Perpetual A-T200m
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63200m
MSRP
Atomic Perpetual A-T
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63$429

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
41mm
38mm
Thickness
12mm
13mm
Lug-to-Lug
46mm
44.5mm
Finish
Brushed and polished
Caseback
Solid
Engraved screw-in back

Crystal & Dial

4 specs
Crystal Shape
Flat
Double Domed
AR Coating
Underside
Yes
Dial Color
Blue
Indices
Applied

Movement

5 specs
Caliber
H800
Seiko NH36
Type
Solar
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$429

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What people say

Owners + reviewers, side by side

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

Citizen Atomic Perpetual A-T

Owners widely praise the Citizen Atomic Perpetual A-T for its handsome appearance, solid fit and finish, comfortable bracelet, and intuitive world time function. Its perpetual calendar and atomic timekeeping are highlighted as major conveniences, maintaining accuracy within 0.5 seconds even without syncing, and owners appreciate its "set & forget" nature and solar charging. The watch features a modest, stylish blue dial with delicate design details and a clutter-free layout, along with high water resistance without a screw-down crown and light titanium construction. Some find the dial unnecessarily busy, and its time zone functionality is noted as less useful outside the US, with atomic sync being less compelling below the equator. Accuracy is reported as +/-15 seconds per month if not syncing, but +/-0 seconds if it syncs via radio signal. Some find the watch a bit on the large side.

Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63

The Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63 is praised for its screw pins, milled scissor clasp, and embossed ceramic bezel, offering excellent specifications for its price. Owners note its better alignment compared to some alternatives and appreciate its design inspiration. Overall, owners rate the Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63 highly for its build features and value.

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