Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsOak & Oscar The Olmsted ExP-01
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
The Olmsted ExP-0138mm
Power Reserve
Sea Storm MK2 GMT40h
The Olmsted ExP-0142h
Water Resistance
Sea Storm MK2 GMT300m
The Olmsted ExP-01100m
MSRP
Sea Storm MK2 GMT$415
The Olmsted ExP-01$1,775
Full specifications
Case
7 specsCategory
Diver
Field
Diameter
41.50mm
38mm
Thickness
14.15mm
10.8mm
Lug-to-Lug
48.50mm
44.9mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Heat-treated Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
3 specsCrystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Lume
BGW9
Super-LumiNova
Movement
4 specsCaliber
NH34
Sellita SW300
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
42h
Complications
None
GMT, Chronograph, Date
Pricing
1 specsMSRP
$415
$1,775
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