Side by side

Borealis Watch Co. Caloura 300mvsIslander Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26

Q: Which is cheaper, the Borealis Watch Co. Caloura 300m or the Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26?

At MSRP the Borealis Watch Co. Caloura 300m is the cheaper of the two at $275, against $420 for the Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26 — a $145 gap before any retailer discounting.

Q: Which is bigger, the Borealis Watch Co. Caloura 300m or the Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26?

The Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26 wears larger at 42mm versus 42mm for the Borealis Watch Co. Caloura 300m — a 0mm difference across the dial.

Q: Which has better water resistance, the Borealis Watch Co. Caloura 300m or the Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26?

The Borealis Watch Co. Caloura 300m is rated to 300m versus 200m for the Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26.

Q: What movement does the Borealis Watch Co. Caloura 300m run compared to the Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26?

Both watches run automatic movements — the Borealis Watch Co. Caloura 300m uses the NH35 and the Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26 uses the Seiko NH36.

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

Borealis Watch Co.Caloura 300m

borealis-caloura-diver-watch

MSRP $275

Islander Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26

islander-luminous-dial-automatic-dive-watch-with-ar-double-dome-sapphire-crystal

MSRP $420

At a glance

17 of 29 specs differ

Diameter

Caloura 300m42mm

Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-2642mm

Power Reserve

Caloura 300m40h

Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26—

Water Resistance

Caloura 300m300m

Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26200m

MSRP

Caloura 300m$275

Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26$420

Full specifications

Case

7 specs

Diameter

42mm

Thickness

13.9mm

14mm

Lug-to-Lug

44.20mm

48mm

Lug Width

22mm

Finish

Brushed and polished

—

Water Resistance

300m

200m

Caseback

Solid

Engraved screw-in back

Crystal & Dial

5 specs

Crystal Shape

Flat

Double Domed

AR Coating

Inner

Yes

Dial Color

Black

—

Indices

Applied

—

Lume

BGW9

None

Movement

4 specs

Caliber

NH35

Seiko NH36

Beat Rate

28,800 vph

0 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$275

$420

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