Which is cheaper, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 or the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

At MSRP the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 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 Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 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 40mm for the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 — a 6mm difference across the dial.

Which has better water resistance, the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 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 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 Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic?

Both watches run automatic movements — the Islander Bayport Automatic Dive Watch with Blue Wave Dial #ISL-311 uses the Seiko NH35 and the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic uses the Sellita SW220-1.

Side by side

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

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

MSRP $399

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

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

MSRP $3,250

At a glance

15 of 29 specs differ

Diameter

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

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

Power Reserve

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

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

Water Resistance

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

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

MSRP

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

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

Full specifications

Case

7 specs

Diameter

40mm

46mm

Thickness

13.5mm

18mm

Lug-to-Lug

48mm

55mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel (Anthracite IP)

Finish

—

Brushed and polished

Water Resistance

200m

300m

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

—

Anthracite

Indices

—

Applied

Movement

4 specs

Caliber

Seiko NH35

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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