Side by side

Borealis Watch Co. Estoril 300 GMTvsIslander Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62

Q: Which is cheaper, the Borealis Watch Co. Estoril 300 GMT or the Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62?

At MSRP the Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62 is the cheaper of the two at $420, against $600 for the Borealis Watch Co. Estoril 300 GMT — a $180 gap before any retailer discounting.

Q: Which is bigger, the Borealis Watch Co. Estoril 300 GMT or the Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62?

The Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62 wears larger at 42mm versus 41.50mm for the Borealis Watch Co. Estoril 300 GMT — a 0.5mm difference across the dial.

Q: Which has better water resistance, the Borealis Watch Co. Estoril 300 GMT or the Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62?

The Borealis Watch Co. Estoril 300 GMT is rated to 300m versus 200m for the Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62.

Q: What movement does the Borealis Watch Co. Estoril 300 GMT run compared to the Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62?

Both watches run automatic movements — the Borealis Watch Co. Estoril 300 GMT uses the Miyota 9075 and the Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62 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 Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62

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

MSRP $420

At a glance

17 of 29 specs differ

Diameter

Estoril 300 GMT41.50mm

Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-6242mm

Power Reserve

Estoril 300 GMT40h

Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62—

Water Resistance

Estoril 300 GMT300m

Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62200m

MSRP

Estoril 300 GMT$600

Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62$420

Full specifications

Case

7 specs

Diameter

41.50mm

42mm

Thickness

13.5mm

14mm

Lug-to-Lug

47mm

48mm

Lug Width

20mm

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

Miyota 9075

Seiko NH36

Beat Rate

28,800 vph

0 vph

Power Reserve

40h

Jewels

Pricing

1 specs

MSRP

$600

$420

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