Which is cheaper, the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 or the Borealis Watch Co. Jamanta?

At MSRP the Borealis Watch Co. Jamanta is the cheaper of the two at $415, against $429 for the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 — a $14 gap before any retailer discounting.

Which is bigger, the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 or the Borealis Watch Co. Jamanta?

The Borealis Watch Co. Jamanta wears larger at 42.50mm versus 42mm for the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 — a 0.5mm difference across the dial.

What movement does the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 run compared to the Borealis Watch Co. Jamanta?

Both watches run automatic movements — the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 uses the Seiko NH34 and the Borealis Watch Co. Jamanta uses the Miyota 9015.

Side by side

Islander Islander JFK Automatic GMT Watch with Batman Dial #ISL-338vsBorealis Watch Co. Jamanta

Q: Which has better water resistance, the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338 or the Borealis Watch Co. Jamanta?

The Borealis Watch Co. Jamanta is rated to 300m versus 200m for the Islander JFK Automatic GMT Watch with Batman Dial #ISL-338.

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

Borealis Watch Co.Jamanta

prometheus-jamanta-black-dial-date-miyota-9015

MSRP $415

At a glance

18 of 29 specs differ

Diameter

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

Jamanta42.50mm

Power Reserve

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

Jamanta40h

Water Resistance

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

Jamanta300m

MSRP

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

Jamanta$415

Full specifications

Case

8 specs

Crystal & Dial

5 specs

Crystal Shape

Domed

Flat

AR Coating

Underside

Inner

Dial Color

—

Black

Indices

—

Applied

Lume

None

BGW9

Movement

4 specs

Caliber

Seiko NH34

Miyota 9015

Beat Rate

0 vph

28,800 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$429

$415

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