Borealis Watch Co. Sea Storm MK2vsSeiko Prospex Sea PADI Special Edition
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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.

Sea Storm MK2

Prospex Sea PADI Special Edition
Diameter
41.5mm
41.7mm
Lug-to-Lug
48.5mm
lowest
49.5mm
Thickness
14.2mm
12.3mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
41h
MSRP
$475
lowest
$650
Movement
Seiko NH38
Seiko 4R35
Case
4 specsDiameter
41.5mm
41.7mm
Thickness
14.15mm
12.3mm
Lug-to-Lug
48.5mm
49.5mm
Water Resistance
300m
200m
Crystal & Dial
2 specsCrystal
Sapphire
Hardlex
Lume
BGW9
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH38
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23
Pricing
1 specsMSRP
$475
$650
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