Which is cheaper, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition?

At MSRP the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 is the cheaper of the two at $399, against $1,750 for the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition — a $1,351 gap before any retailer discounting.

Which is bigger, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition?

The Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition 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.

Which has better water resistance, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition?

The Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition is rated to 300m versus 200m for the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311.

What movement does the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 run compared to the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition?

Both watches run automatic movements — the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 uses the Seiko NH35 and the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition uses the 6R54.

Side by side

Islander Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311vsSeiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

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

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

spb509j1

MSRP $1,750

At a glance

14 of 29 specs differ

Diameter

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

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition42mm

Power Reserve

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

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition72h

Water Resistance

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

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition300m

MSRP

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

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition$1,750

Full specifications

Case

5 specs

Diameter

40mm

42mm

Thickness

13.5mm

13.3mm

Lug-to-Lug

48mm

48.6mm

Finish

—

Brushed and polished

Water Resistance

200m

300m

Crystal & Dial

4 specs

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

—

Black

Indices

—

Applied

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

4 specs

Caliber

Seiko NH35

6R54

Beat Rate

0 vph

28,800 vph

Power Reserve

72h

Jewels

Pricing

1 specs

MSRP

$399

$1,750

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