What movement does the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 run compared to the Helgray Speedster (Racing Light Blue)?

Both watches run automatic movements — the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 uses the Seiko NH34 and the Helgray Speedster (Racing Light Blue) uses the Miyota 6S21.

Side by side

Islander Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316vsHelgray Speedster (Racing Light Blue)

Q: Which is cheaper, the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 or the Helgray Speedster (Racing Light Blue)?

At MSRP the Helgray Speedster (Racing Light Blue) is the cheaper of the two at $299, against $379 for the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 — a $80 gap before any retailer discounting.

Q: Which is bigger, the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 or the Helgray Speedster (Racing Light Blue)?

The Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 wears larger at 40mm versus 39mm for the Helgray Speedster (Racing Light Blue) — a 1mm difference across the dial.

Q: Which has better water resistance, the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 or the Helgray Speedster (Racing Light Blue)?

The Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 is rated to 200m versus 30m for the Helgray Speedster (Racing Light Blue).

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

Islander Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

islander-calabro-gmt-world-time-automatic-watch-with-anthracite-dial-isl-316

MSRP $379

Helgray Speedster (Racing Light Blue)

speedster-racing-light-blue

MSRP $299

At a glance

15 of 29 specs differ

Diameter

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-31640mm

Speedster (Racing Light Blue)39mm

Power Reserve

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316—

Speedster (Racing Light Blue)40h

Water Resistance

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316200m

Speedster (Racing Light Blue)30m

MSRP

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316$379

Speedster (Racing Light Blue)$299

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Underside

Inner

Dial Color

—

Black

Indices

—

Applied

Movement

4 specs

Caliber

Seiko NH34

Miyota 6S21

Beat Rate

0 vph

28,800 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$379

$299

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