Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsRolex Sea-Dweller
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Sea-Dweller43mm
Power Reserve
Sea Storm MK2 GMT40h
Sea-Dweller70h
Water Resistance
Sea Storm MK2 GMT300m
Sea-Dweller1,220m
MSRP
Sea Storm MK2 GMT$415
Sea-Dweller$14,550
Full specifications
Case
8 specsDiameter
41.50mm
43mm
Thickness
14.15mm
—
Lug-to-Lug
48.50mm
—
Lug Width
20mm
—
Material
Stainless Steel
Oystersteel
Finish
Brushed and polished
—
Water Resistance
300m
1220m
Caseback
Solid
Monobloc middle case, screw-down case back and winding crown
Crystal & Dial
3 specsAR Coating
Inner
—
Indices
Applied
Index
Lume
BGW9
Chromalight
Movement
4 specsCaliber
Seiko NH34
3235
Power Reserve
40h
70h
Jewels
25
31
Complications
None
Date
Pricing
1 specsMSRP
$415
$14,550
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