Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsPOLPORA POLPORA Zawisza Czarny
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
POLPORA Zawisza Czarny40.5mm
Power Reserve
Sea Storm MK2 GMT40h
POLPORA Zawisza Czarny40h
Water Resistance
Sea Storm MK2 GMT300m
POLPORA Zawisza Czarny50m
MSRP
Sea Storm MK2 GMT$415
POLPORA Zawisza Czarny$1,790
Full specifications
Case
6 specsCategory
Diver
—
Diameter
41.50mm
40.5mm
Thickness
14.15mm
10mm
Lug-to-Lug
48.50mm
47mm
Lug Width
20mm
20mm
Water Resistance
300m
50m
Crystal & Dial
1 specsLume
BGW9
None
Movement
1 specsCaliber
NH34
Sellita SW295-1
Pricing
1 specsMSRP
$415
$1,790
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