Which is cheaper, the Borealis Watch Co. Sea Storm MK2 GMT or the Yema Superman Slim CMM.20?

At MSRP the Borealis Watch Co. Sea Storm MK2 GMT is the cheaper of the two at $415, against $2,372 for the Yema Superman Slim CMM.20 — a $1,957 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Sea Storm MK2 GMT or the Yema Superman Slim CMM.20?

The Borealis Watch Co. Sea Storm MK2 GMT wears larger at 41.50mm versus 39mm for the Yema Superman Slim CMM.20 — a 2.5mm difference across the dial.

What movement does the Borealis Watch Co. Sea Storm MK2 GMT run compared to the Yema Superman Slim CMM.20?

The Borealis Watch Co. Sea Storm MK2 GMT runs a automatic caliber (NH34), while the Yema Superman Slim CMM.20 runs a mechanical (Yema CMM.20).

Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsYema Superman Slim CMM.20

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

Yema Superman Slim CMM.20

yema-superman-slim-cmm-20-11-24-66-sn-m3

MSRP $2,372

At a glance

9 of 29 specs differ

Diameter

Sea Storm MK2 GMT41.50mm

Superman Slim CMM.2039mm

Power Reserve

Sea Storm MK2 GMT40h

Superman Slim CMM.2040h

Water Resistance

Sea Storm MK2 GMT300m

Superman Slim CMM.20300m

MSRP

Sea Storm MK2 GMT$415

Superman Slim CMM.20$2,372

Full specifications

Case

5 specs

Diameter

41.50mm

39mm

Thickness

14.15mm

9.95mm

Lug-to-Lug

48.50mm

—

Lug Width

20mm

Material

Stainless Steel

316L Stainless Steel

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Lume

BGW9

None

Movement

1 specs

Caliber

NH34

Yema CMM.20

Pricing

1 specs

MSRP

$415

$2,372

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