Side by side

Borealis Watch Co. Sea Storm MK2vsLongines LONGINES SPIRIT FLYBACK PROTOTYPE

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
LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400

At a glance

10 of 29 specs differ
Diameter
Sea Storm MK241.50mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
Sea Storm MK240h
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
Sea Storm MK2300m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
Sea Storm MK2$475
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41.50mm
42mm
Thickness
14.15mm
17mm
Lug-to-Lug
48.50mm
49.5mm
Lug Width
20mm
22mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Green
Lume
BGW9
None

Movement

1 specs
Caliber
NH38
L791.4

Pricing

1 specs
MSRP
$475
$7,400

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