Side by side

Borealis Watch Co. Caloura 300mvsIslander Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34

Q: Which is cheaper, the Borealis Watch Co. Caloura 300m or the Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34?

At MSRP the Borealis Watch Co. Caloura 300m is the cheaper of the two at $275, against $469 for the Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34 — a $194 gap before any retailer discounting.

Q: Which is bigger, the Borealis Watch Co. Caloura 300m or the Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34?

The Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34 wears larger at 43mm versus 42mm for the Borealis Watch Co. Caloura 300m — a 1mm difference across the dial.

Q: Which has better water resistance, the Borealis Watch Co. Caloura 300m or the Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34?

The Borealis Watch Co. Caloura 300m is rated to 300m versus 200m for the Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34.

Q: What movement does the Borealis Watch Co. Caloura 300m run compared to the Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34?

Both watches run automatic movements — the Borealis Watch Co. Caloura 300m uses the NH35 and the Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34 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 Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34

islander-black-dial-automatic-dive-watch-with-dlc-case-and-bracelet-ar-sapphire-

MSRP $469

At a glance

16 of 29 specs differ

Diameter

Caloura 300m42mm

Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-3443mm

Power Reserve

Caloura 300m40h

Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34—

Water Resistance

Caloura 300m300m

Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34200m

MSRP

Caloura 300m$275

Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34$469

Full specifications

Case

7 specs

Diameter

42mm

43mm

Thickness

13.9mm

14mm

Lug-to-Lug

44.20mm

46mm

Lug Width

22mm

Finish

Brushed and polished

—

Water Resistance

300m

200m

Caseback

Solid

Engraved screw-in back

Crystal & Dial

4 specs

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

$469

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