Which is cheaper, the Borealis Watch Co. Sea Storm MK2 or the Maen Grand Tonneau Ultra Thin?

At MSRP the Borealis Watch Co. Sea Storm MK2 is the cheaper of the two at $475, against $1,519 for the Maen Grand Tonneau Ultra Thin — a $1,044 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 or the Maen Grand Tonneau Ultra Thin?

The Borealis Watch Co. Sea Storm MK2 wears larger at 41.50mm versus 34mm for the Maen Grand Tonneau Ultra Thin — a 7.5mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Sea Storm MK2 or the Maen Grand Tonneau Ultra Thin?

The Borealis Watch Co. Sea Storm MK2 is rated to 300m versus 50m for the Maen Grand Tonneau Ultra Thin.

Side by side

Borealis Watch Co. Sea Storm MK2vsMaen Grand Tonneau Ultra Thin

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

Borealis Watch Co.Sea Storm MK2

borealis-sea-storm-mk2-random-rob-special-limited-edition

MSRP $475

Maen Grand Tonneau Ultra Thin

grand-tonneau-ultra-thin-mnl-04

MSRP $1,519

At a glance

11 of 29 specs differ

Diameter

Sea Storm MK241.50mm

Grand Tonneau Ultra Thin34mm

Power Reserve

Sea Storm MK240h

Grand Tonneau Ultra Thin40h

Water Resistance

Sea Storm MK2300m

Grand Tonneau Ultra Thin50m

MSRP

Sea Storm MK2$475

Grand Tonneau Ultra Thin$1,519

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Black

MNL.04

Lume

BGW9

None

Movement

1 specs

Caliber

NH38

—

Pricing

1 specs

MSRP

$475

$1,519

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