Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsOak & Oscar The Olmsted 38
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
The Olmsted 3838mm
Power Reserve
Sea Storm MK2 GMT40h
The Olmsted 3842h
Water Resistance
Sea Storm MK2 GMT300m
The Olmsted 38100m
MSRP
Sea Storm MK2 GMT$415
The Olmsted 38$1,775
Full specifications
Case
8 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 Stainless Steel
Water Resistance
300m
100m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Black
Green
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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