Side by side

Islander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsFormex Reef GMT

Q: Which is cheaper, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Formex Reef GMT?

At MSRP the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 is the cheaper of the two at $399, against $2,235 for the Formex Reef GMT — a $1,836 gap before any retailer discounting.

Q: Which is bigger, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Formex Reef GMT?

The Formex Reef GMT wears larger at 42mm versus 40mm for the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 — a 2mm difference across the dial.

Q: Which has better water resistance, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Formex Reef GMT?

The Formex Reef GMT is rated to 300m versus 200m for the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311.

Q: What movement does the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 run compared to the Formex Reef GMT?

Both watches run automatic movements — the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 uses the Seiko NH35 and the Formex Reef GMT uses the Sellita SW330-2.

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

Islander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311

islander-bayport-automatic-dive-watch-with-blue-wave-dial-isl-311

MSRP $399

Formex Reef GMT

reef-gmt-42mm-automatic-cosc-300m-black-blue

MSRP $2,235

At a glance

16 of 29 specs differ

Diameter

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-31140mm

Reef GMT42mm

Power Reserve

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311—

Reef GMT56h

Water Resistance

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311200m

Reef GMT300m

MSRP

Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311$399

Reef GMT$2,235

Full specifications

Case

7 specs

Crystal & Dial

4 specs

AR Coating

Yes

Inner

Dial Color

—

Black

Indices

—

Applied

Lume

None

Super-LumiNova

Movement

4 specs

Caliber

Seiko NH35

Sellita SW330-2

Beat Rate

0 vph

28,800 vph

Power Reserve

56h

Jewels

Pricing

1 specs

MSRP

$399

$2,235

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