Side by side

Islander Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50vsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

Q: Which is cheaper, the Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50 or the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition?

At MSRP the Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50 is the cheaper of the two at $399, against $1,250 for the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition — a $851 gap before any retailer discounting.

Q: Which is bigger, the Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50 or the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition?

The Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50 wears larger at 43mm versus 40.5mm for the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition — a 2.5mm difference across the dial.

Q: What movement does the Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50 run compared to the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition?

Both watches run automatic movements — the Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50 uses the Seiko NH36 and the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition uses the 6R35.

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

Islander Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50

islander-43mm-automatic-dual-time-watch-with-solid-link-bracelet-ar-sapphire-cry

MSRP $399

Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

spb297j1

MSRP $1,250

At a glance

17 of 29 specs differ

Diameter

Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-5043mm

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition40.5mm

Power Reserve

Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50—

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition70h

Water Resistance

Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50200m

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition200m

MSRP

Islander 43mm Automatic Dual-Time Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Sapphire Bezel Insert #ISL-50$399

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition$1,250

Full specifications

Case

7 specs

Crystal & Dial

5 specs

Crystal Shape

Flat

Curved

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 NH36

6R35

Beat Rate

0 vph

28,800 vph

Power Reserve

70h

Jewels

Pricing

1 specs

MSRP

$399

$1,250

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