Side by side
Borealis Watch Co. Sea Storm MK2vsSeestern S471 Double Crown Diver
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Sea Storm MK241.50mm
S471 Double Crown Diver38mm
Power Reserve
Sea Storm MK240h
S471 Double Crown Diver35h+h
Water Resistance
Sea Storm MK2300m
S471 Double Crown Diver100m
MSRP
Sea Storm MK2$475
S471 Double Crown Diver$179
Full specifications
Case
6 specsDiameter
41.50mm
38mm
Thickness
14.15mm
12mm
Lug-to-Lug
48.50mm
40.3mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
2 specsDial Color
Black
Blue
Lume
BGW9
None
Movement
5 specsCaliber
NH38
Miyota 8215
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
35h+h
Jewels
25
21
Complications
None
Date
Pricing
1 specsMSRP
$475
$179
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