Which is cheaper, the Borealis Watch Co. Sea Storm MK2 GMT or the Zelos Aventurine (sellita)?

At MSRP the Borealis Watch Co. Sea Storm MK2 GMT is the cheaper of the two at $415, against $699 for the Zelos Aventurine (sellita) — a $284 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 GMT or the Zelos Aventurine (sellita)?

The Borealis Watch Co. Sea Storm MK2 GMT wears larger at 41.50mm versus 39mm for the Zelos Aventurine (sellita) — a 2.5mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Sea Storm MK2 GMT or the Zelos Aventurine (sellita)?

The Borealis Watch Co. Sea Storm MK2 GMT is rated to 300m versus 50m for the Zelos Aventurine (sellita).

What movement does the Borealis Watch Co. Sea Storm MK2 GMT run compared to the Zelos Aventurine (sellita)?

The Borealis Watch Co. Sea Storm MK2 GMT runs a automatic caliber (NH34), while the Zelos Aventurine (sellita) runs a manual (ETA/Peseux 7001).

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsZelos Aventurine (sellita)

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

Borealis Watch Co.Sea Storm MK2 GMT

borealis-sea-storm-mk2-gmt-version-aa

MSRP $415

Zelos Aventurine (sellita)

comet-39mm-aventurine

MSRP $699

At a glance

13 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Aventurine (sellita)39mm

Power Reserve

Sea Storm MK2 GMT40h

Aventurine (sellita)40h

Water Resistance

Sea Storm MK2 GMT300m

Aventurine (sellita)50m

MSRP

Sea Storm MK2 GMT$415

Aventurine (sellita)$699

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Black

Aventurine (Sellita)

Lume

BGW9

None

Movement

2 specs

Caliber

NH34

ETA/Peseux 7001

Type

Automatic

Manual

Pricing

1 specs

MSRP

$415

$699

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