Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsSwatch Am51

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

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Sea Storm MK2 GMT
Borealis Watch Co.Sea Storm MK2 GMT
MSRP $415
See the full Sea Storm MK2 GMT
Am51
SwatchAm51
MSRP $170
See the full Am51
Buy from Borealis Watch Co. ↗
Buy used on eBay ↗
Buy from Swatch ↗
Buy used on eBay ↗

At a glance

15 of 29 specs differ
Diameter
Sea Storm MK2 GMT41.50mm
Am5142mm
Power Reserve
Sea Storm MK2 GMT—
Am51—
Water Resistance
Sea Storm MK2 GMT300m
Am5130m
MSRP
Sea Storm MK2 GMT$415
Am51$170

Full specifications

Case

8 specs
Category
Diver
Mechanical
Diameter
41.50mm
42mm
Thickness
14.15mm
13.9mm
Lug-to-Lug
48.50mm
50.6mm
Lug Width
20mm
—
Material
Stainless Steel
Bio-sourced Material
Finish
—
Bio-sourced material
Water Resistance
300m
30m

Crystal & Dial

3 specs
Crystal
Sapphire
—
Dial Color
—
Black
Lume
BGW9
None

Movement

3 specs
Caliber
Seiko NH34
—
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$415
$170
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