Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsStraton Straton Syncro MKII Mechanical Chrono
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
20 of 29 specs differDiameter
Sea Storm MK2 GMT41.50mm
Straton Syncro MKII Mechanical Chrono40mm
Power Reserve
Sea Storm MK2 GMT40h
Straton Syncro MKII Mechanical Chrono—
Water Resistance
Sea Storm MK2 GMT300m
Straton Syncro MKII Mechanical Chrono100m
MSRP
Sea Storm MK2 GMT$415
Straton Syncro MKII Mechanical Chrono$599
Full specifications
Case
9 specsCategory
Diver
Chronograph
Diameter
41.50mm
40mm
Thickness
14.15mm
12.4mm
Lug-to-Lug
48.50mm
48mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
—
Water Resistance
300m
100m
Caseback
Solid
Sapphire crystal
Crystal & Dial
5 specsCrystal Shape
Flat
Domed
AR Coating
Inner
Underside
Dial Color
Black
—
Indices
Applied
—
Lume
BGW9
None
Movement
5 specsCaliber
NH34
Seagull ST19
Type
Automatic
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Pricing
1 specsMSRP
$415
$599
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