Side by side
Boldr BlastoisevsBorealis Watch Co. Sea Storm MK2 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Blastoise40mm
Sea Storm MK2 GMT41.50mm
Power Reserve
Blastoise40h
Sea Storm MK2 GMT40h
Water Resistance
Blastoise200m
Sea Storm MK2 GMT300m
MSRP
Blastoise$449
Sea Storm MK2 GMT$415
Full specifications
Case
5 specsDiameter
40mm
41.50mm
Thickness
12mm
14.15mm
Lug-to-Lug
49.5mm
48.50mm
Lug Width
20mm
20mm
Water Resistance
200m
300m
Crystal & Dial
2 specsDial Color
Blastoise
Black
Lume
Super-LumiNova
BGW9
Movement
1 specsCaliber
Seiko (SII) NH37
NH34
Pricing
1 specsMSRP
$449
$415
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