Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsRolex Deepsea Challenge
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Deepsea Challenge50mm
Power Reserve
Sea Storm MK2 GMT40h
Deepsea Challenge70h
Water Resistance
Sea Storm MK2 GMT300m
Deepsea Challenge1,000m
MSRP
Sea Storm MK2 GMT$415
Deepsea Challenge$29,100
Full specifications
Case
8 specsDiameter
41.50mm
50mm
Thickness
14.15mm
9.5mm
Lug-to-Lug
48.50mm
46mm
Lug Width
20mm
—
Material
Stainless Steel
RLX Titanium
Finish
Brushed and polished
RLX titanium
Water Resistance
300m
1000m
Caseback
Solid
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock system case architecture with nitrogen-alloyed steel ring and helium escape valve
Crystal & Dial
3 specsAR Coating
Inner
—
Indices
Applied
Index
Lume
BGW9
Chromalight
Movement
3 specsCaliber
NH34
3230
Power Reserve
40h
70h
Jewels
25
31
Pricing
1 specsMSRP
$415
$29,100
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