Side by side

Borealis Watch Co. Estoril 300 GMTvsIslander 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. Estoril 300 GMT 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 Islander Black Dial Automatic Dive Watch with DLC Case and Bracelet, AR Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-34 is the cheaper of the two at $469, against $600 for the Borealis Watch Co. Estoril 300 GMT — a $131 gap before any retailer discounting.

Q: Which is bigger, the Borealis Watch Co. Estoril 300 GMT 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 41.50mm for the Borealis Watch Co. Estoril 300 GMT — a 1.5mm difference across the dial.

Q: Which has better water resistance, the Borealis Watch Co. Estoril 300 GMT 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. Estoril 300 GMT 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. Estoril 300 GMT 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. Estoril 300 GMT uses the Miyota 9075 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.Estoril 300 GMT

borealis-estoril-300-gmt-black-dial-arabic-numbers-black-red-bezel-date-version-k

MSRP $600

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

Estoril 300 GMT41.50mm

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

Power Reserve

Estoril 300 GMT40h

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

Water Resistance

Estoril 300 GMT300m

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

MSRP

Estoril 300 GMT$600

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

41.50mm

43mm

Thickness

13.5mm

14mm

Lug-to-Lug

47mm

46mm

Lug Width

20mm

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

Miyota 9075

Seiko NH36

Beat Rate

28,800 vph

0 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$600

$469

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