Side by side

Borealis Watch Co. Sea Storm MK2vsTudor Black Bay One 31 S&G

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

Sea Storm MK2
Borealis Watch Co.Sea Storm MK2
MSRP $475
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

12 of 29 specs differ
Diameter
Sea Storm MK241.50mm
Black Bay One 31 S&G31mm
Power Reserve
Sea Storm MK240h
Black Bay One 31 S&G50h
Water Resistance
Sea Storm MK2300m
Black Bay One 31 S&G100m
MSRP
Sea Storm MK2$475
Black Bay One 31 S&G$6,850

Full specifications

Case

8 specs
Category
Diver
—
Diameter
41.50mm
31mm
Thickness
14.15mm
9.5mm
Lug-to-Lug
48.50mm
46mm
Lug Width
20mm
17mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

1 specs
Lume
BGW9
None

Movement

2 specs
Caliber
NH38
MT5201
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$475
$6,850

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