Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsSmiths Armstrong Siddeley
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Armstrong Siddeley42mm
Power Reserve
Sea Storm MK2 GMT40h
Armstrong Siddeley—
Water Resistance
Sea Storm MK2 GMT300m
Armstrong Siddeley100m
MSRP
Sea Storm MK2 GMT$415
Armstrong Siddeley$980
Full specifications
Case
6 specsCategory
Diver
—
Diameter
41.50mm
42mm
Thickness
14.15mm
12mm
Lug-to-Lug
48.50mm
52mm
Lug Width
20mm
22mm
Water Resistance
300m
100m
Crystal & Dial
2 specsDial Color
Black
Cream
Lume
BGW9
None
Movement
3 specsCaliber
Seiko NH34
Unitas 6498
Type
Automatic
Manual
Power Reserve
40h
—
Pricing
1 specsMSRP
$415
$980
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