What movement does the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 run compared to the Grand Seiko SBGX363?

The Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 runs a automatic caliber (Seiko NH34), while the Grand Seiko SBGX363 runs a quartz (9F51).

Side by side

Islander Islander JFK Automatic GMT Watch with Batman Dial #ISL-338vsGrand Seiko SBGX363

Q: Which is cheaper, the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 or the Grand Seiko SBGX363?

At MSRP the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 is the cheaper of the two at $429, against $3,600 for the Grand Seiko SBGX363 — a $3,171 gap before any retailer discounting.

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

Islander Islander JFK Automatic GMT Watch with Batman Dial #ISL-338

islander-jfk-automatic-gmt-watch-with-batman-dial-isl-338

MSRP $429

Grand Seiko SBGX363

sbgx363g

MSRP $3,600

At a glance

18 of 29 specs differ

Diameter

Islander JFK Automatic GMT Watch with Batman Dial #ISL-33842mm

SBGX36332.3mm

Power Reserve

Islander JFK Automatic GMT Watch with Batman Dial #ISL-338—

SBGX36340h

Water Resistance

Islander JFK Automatic GMT Watch with Batman Dial #ISL-338200m

SBGX363100m

MSRP

Islander JFK Automatic GMT Watch with Batman Dial #ISL-338$429

SBGX363$3,600

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal Shape

Domed

Flat

AR Coating

Underside

Yes

Dial Color

—

Black

Indices

—

Applied

Movement

5 specs

Caliber

Seiko NH34

9F51

Type

Automatic

Quartz

Beat Rate

0 vph

28,800 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$429

$3,600

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