Which is cheaper, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

At MSRP the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 is the cheaper of the two at $399, against $3,250 for the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic — a $2,851 gap before any retailer discounting.

Which is bigger, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

The Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic wears larger at 46mm versus 45mm for the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 — a 1mm difference across the dial.

Which has better water resistance, the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

The Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic is rated to 300m versus 200m for the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301.

What movement does the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 run compared to the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

Both watches run automatic movements — the Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301 uses the Seiko NH36 and the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic uses the Sellita SW220-1.

Side by side

Islander Islander Automatic Turtle Dive Watch with Blue Dial #ISL-301vsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

46mm-anthracite-large-divers-automatic-jdd

MSRP $3,250

At a glance

16 of 29 specs differ

Diameter

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

JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm

Power Reserve

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

JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h

Water Resistance

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

JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m

MSRP

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

JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

7 specs

Diameter

45mm

46mm

Thickness

15mm

18mm

Lug-to-Lug

47mm

55mm

Material

Stainless Steel

316L Stainless Steel (Anthracite IP)

Finish

—

Brushed and polished

Water Resistance

200m

300m

Caseback

Embossed screw-in caseback

Solid

Crystal & Dial

4 specs

Crystal Shape

Double Domed

Flat

AR Coating

Underside

Inner

Dial Color

—

Anthracite

Indices

—

Applied

Movement

4 specs

Caliber

Seiko NH36

Sellita SW220-1

Beat Rate

0 vph

28,800 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$399

$3,250

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