Which is cheaper, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

At MSRP the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 is the cheaper of the two at $399, against $1,150 for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a $751 gap before any retailer discounting.

Which is bigger, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 wears larger at 45mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a 5.5mm difference across the dial.

Which has better water resistance, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 is rated to 200m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition.

What movement does the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 run compared to the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

Both watches run automatic movements — the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 uses the Seiko NH36 and the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition uses the 6R55.

Side by side

Islander Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301vsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

Islander Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301

islander-automatic-turtle-dive-watch-with-blue-dial-isl-301

MSRP $399

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

spb517j1

MSRP $1,150

At a glance

17 of 29 specs differ

Diameter

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-30145mm

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm

Power Reserve

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301—

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h

Water Resistance

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301200m

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m

MSRP

Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301$399

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150

Full specifications

Case

7 specs

Crystal & Dial

5 specs

Crystal Shape

Double Domed

Curved

AR Coating

Underside

Anti-reflective coating on inner surface

Dial Color

—

Black

Indices

—

Applied

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Seiko NH36

6R55

Beat Rate

0 vph

28,800 vph

Power Reserve

72h

Jewels

Pricing

1 specs

MSRP

$399

$1,150

Follow this matchup

Get a note when Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 vs Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring