Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsTimefactors Aerotimer
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Aerotimer42mm
Power Reserve
Sea Storm MK2 GMT40h
Aerotimer—
Water Resistance
Sea Storm MK2 GMT300m
Aerotimer100m
MSRP
Sea Storm MK2 GMT$415
Aerotimer$416
Full specifications
Case
6 specsCategory
Diver
—
Diameter
41.50mm
42mm
Thickness
14.15mm
13mm
Lug-to-Lug
48.50mm
50mm
Lug Width
20mm
20mm
Water Resistance
300m
100m
Crystal & Dial
1 specsLume
BGW9
SuperLuminova C3
Movement
3 specsCaliber
Seiko NH34
Seiko VK64 (Meca-Quartz)
Type
Automatic
Mecaquartz
Power Reserve
40h
—
Pricing
1 specsMSRP
$415
$416
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