Borealis Watch Co. Caloura 300mvsIslander Automatic GMT Diver with Blue Waffle Dial

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Caloura 300m
Borealis Watch Co.Caloura 300m

MSRP $275

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Buy from Borealis Watch Co. Used on eBay
Automatic GMT Diver with Blue Waffle Dial
IslanderAutomatic GMT Diver with Blue Waffle Dial

MSRP $499

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Buy from Islander Used on eBay

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Borealis Watch Co. Caloura 300m at true scale

Caloura 300m

Islander Automatic GMT Diver with Blue Waffle Dial at true scale

Automatic GMT Diver with Blue Waffle Dial

Diameter

42mm

42mm

Lug-to-Lug

44.2mm

lowest

46mm

Thickness

13.9mm

lowest

14mm

Water Resistance

300m

highest

200m

MSRP

$275

lowest

$499

Movement

Seiko NH35

Seiko NH34

Case

4 specs
Thickness
13.9mm
14mm
Lug-to-Lug
44.2mm
46mm
Water Resistance
300m
200m
Caseback
n/a
Screw-down

Crystal & Dial

3 specs
Crystal Shape
n/a
Double Domed
AR Coating
n/a
Underside
Lume
BGW9
None

Movement

1 specs
Caliber
Seiko NH35
Seiko NH34

Pricing

1 specs
MSRP
$275
$499
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