Borealis Watch Co. Caloura 300mvsZelos Spearfish 3
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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.

Caloura 300m

Spearfish 3
Diameter
42mm
40mm
Lug-to-Lug
44.2mm
n/a
Thickness
13.9mm
11.5mm
lowest
Water Resistance
300m
highest
200m
MSRP
$275
lowest
$799
Movement
Seiko NH35
La Joux-Perret G100
Case
6 specsDiameter
42mm
40mm
Thickness
13.9mm
11.5mm
Lug-to-Lug
44.2mm
n/a
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m
Crystal & Dial
2 specsDial Color
n/a
Diver - Forged Carbon
Lume
BGW9
None
Movement
1 specsCaliber
Seiko NH35
La Joux-Perret G100
Pricing
1 specsMSRP
$275
$799
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