Side by side
Borealis Watch Co. Estoril 300 GMTvsCircula Watches SuperSport
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Estoril 300 GMT41.50mm
SuperSport40mm
Power Reserve
Estoril 300 GMT40h
SuperSport41h
Water Resistance
Estoril 300 GMT300m
SuperSport300m
MSRP
Estoril 300 GMT$600
SuperSport—
Full specifications
Case
5 specsCategory
Diver
—
Diameter
41.50mm
40mm
Thickness
13.5mm
12mm
Lug-to-Lug
47mm
46.5mm
Lug Width
20mm
20mm
Crystal & Dial
2 specsDial Color
Black
Petrol
Lume
BGW9
None
Movement
2 specsCaliber
Miyota 9075
Sellita SW200-1
Power Reserve
40h
41h
Pricing
1 specsMSRP
$600
—
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