Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsMarathon Steel Navigator SSNAV-D Auto
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Steel Navigator SSNAV-D Auto41mm
Power Reserve
Sea Storm MK2 GMT40h
Steel Navigator SSNAV-D Auto40h
Water Resistance
Sea Storm MK2 GMT300m
Steel Navigator SSNAV-D Auto60m
MSRP
Sea Storm MK2 GMT$415
Steel Navigator SSNAV-D Auto$1,400
Full specifications
Case
7 specsCategory
Diver
Pilot
Diameter
41.50mm
41mm
Thickness
14.15mm
11mm
Lug-to-Lug
48.50mm
48mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
60m
Crystal & Dial
1 specsLume
BGW9
None
Movement
1 specsCaliber
NH34
Sellita SW220-1
Pricing
1 specsMSRP
$415
$1,400
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