Side by side
Borealis Watch Co. Sea Storm MK2 GMTvsCore Timepieces The River Watch
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
The River Watch42mm
Power Reserve
Sea Storm MK2 GMT40h
The River Watch—
Water Resistance
Sea Storm MK2 GMT300m
The River Watch300m
MSRP
Sea Storm MK2 GMT$415
The River Watch$540
Full specifications
Case
6 specsCategory
Diver
—
Diameter
41.50mm
42mm
Thickness
14.15mm
—
Lug-to-Lug
48.50mm
—
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Crystal & Dial
2 specsDial Color
Black
—
Lume
BGW9
None
Movement
2 specsCaliber
NH34
Seiko NH34A
Power Reserve
40h
—
Pricing
1 specsMSRP
$415
—
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Borealis Watch Co. Sea Storm MK2 GMT vs Core Timepieces The River Watch gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Borealis Watch Co. Sea Storm MK2vsCore Timepieces The River WatchChristopher Ward C60 LympstonevsCore Timepieces The River WatchCore Timepieces The River WatchvsBoldr MarineCore Timepieces The River WatchvsGeckota PhalanxBorealis Watch Co. Sea Storm MK2 GMTvsSignum Cuda GMTBorealis Watch Co. Sea Storm MK2 GMTvsVesuviate Watches Volare-Digi