Side by side
Borealis Watch Co. Estoril 300 GMTvsVaer D4 Outerknown Solar Diver
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Estoril 300 GMT41.50mm
D4 Outerknown Solar Diver39mm
Power Reserve
Estoril 300 GMT40h
D4 Outerknown Solar Diver40h
Water Resistance
Estoril 300 GMT300m
D4 Outerknown Solar Diver200m
MSRP
Estoril 300 GMT$600
D4 Outerknown Solar Diver$549
Full specifications
Case
6 specsDiameter
41.50mm
39mm
Thickness
13.5mm
13.18mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m
Crystal & Dial
3 specsCrystal
Sapphire
Domed Sapphire
Dial Color
Black
Blue
Lume
BGW9
None
Movement
2 specsCaliber
Miyota 9075
—
Type
Automatic
Quartz
Pricing
1 specsMSRP
$600
$549
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