Side by side

Islander Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05vsSeiko Prospex Sea The Black Series

Q: Which is cheaper, the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 or the Seiko Prospex Sea The Black Series?

At MSRP the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 is the cheaper of the two at $429, against $765 for the Seiko Prospex Sea The Black Series — a $336 gap before any retailer discounting.

Q: Which is bigger, the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series wears larger at 45mm versus 38mm for the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 — a 7mm difference across the dial.

Q: What movement does the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 run compared to the Seiko Prospex Sea The Black Series?

Both watches run automatic movements — the Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05 uses the NH36 and the Seiko Prospex Sea The Black Series uses the Seiko 4R36.

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

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Islander Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05

MSRP $429

See the full Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05

Seiko Prospex Sea The Black Series

MSRP $765

See the full Prospex Sea The Black Series

At a glance

12 of 29 specs differ

Diameter

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-0538mm

Prospex Sea The Black Series45mm

Power Reserve

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05—

Prospex Sea The Black Series41h

Water Resistance

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05200m

Prospex Sea The Black Series200m

MSRP

Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05$429

Prospex Sea The Black Series$765

Full specifications

Case

5 specs

Diameter

38mm

45mm

Thickness

13mm

13.2mm

Lug-to-Lug

44.5mm

47.7mm

Lug Width

20mm

22mm

Caseback

Engraved screw-in back

—

Crystal & Dial

3 specs

Crystal Shape

Flat

—

AR Coating

Yes

Anti-reflective coating on inner surface

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

NH36

Seiko 4R36

Power Reserve

41h

Jewels

Pricing

1 specs

MSRP

$429

$765

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Islander Islander 38mm Automatic Dive Watch with Solid-Link Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-05vsSeiko Prospex Sea The Black Series

At a glance

Full specifications

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