Side by side
Borealis Watch Co. Porto CovovsBorealis Watch Co. Sea Storm MK2 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
4 of 29 specs differDiameter
Porto Covo40mm
Sea Storm MK2 GMT41.50mm
Power Reserve
Porto Covo40h
Sea Storm MK2 GMT40h
Water Resistance
Porto Covo300m
Sea Storm MK2 GMT300m
MSRP
Porto Covo$415
Sea Storm MK2 GMT$415
Full specifications
Case
3 specsDiameter
40mm
41.50mm
Thickness
11.6mm
14.15mm
Lug-to-Lug
42.5mm
48.50mm
Movement
1 specsCaliber
Miyota 9039
NH34
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