Side by side

Borealis Watch Co. Sea Storm MK2vsNoctua Watch Corp. Sentinel

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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Sea Storm MK2
Borealis Watch Co.Sea Storm MK2
MSRP $475
Sentinel
Noctua Watch Corp.Sentinel
MSRP $429
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Buy from Noctua Watch Corp. ↗
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At a glance

10 of 29 specs differ
Diameter
Sea Storm MK241.50mm
Sentinel42mm
Power Reserve
Sea Storm MK240h
Sentinel—
Water Resistance
Sea Storm MK2300m
Sentinel300m
MSRP
Sea Storm MK2$475
Sentinel$429

Full specifications

Case

5 specs
Category
Diver
—
Diameter
41.50mm
42mm
Thickness
14.15mm
15mm
Lug-to-Lug
48.50mm
46mm
Lug Width
20mm
22mm

Crystal & Dial

2 specs
Dial Color
Black
—
Lume
BGW9
None

Movement

2 specs
Caliber
NH38
Seiko NH35A
Power Reserve
40h
—

Pricing

1 specs
MSRP
$475
—
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