Side by side
Borealis Watch Co. Porto CovovsJack Mason Strat-o-timer GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Porto Covo40mm
Strat-o-timer GMT40mm
Power Reserve
Porto Covo40h
Strat-o-timer GMT42h
Water Resistance
Porto Covo300m
Strat-o-timer GMT200m
MSRP
Porto Covo$415
Strat-o-timer GMT$1,099
Full specifications
Case
6 specsCategory
Diver
—
Diameter
40mm
40mm
Thickness
11.6mm
13.2mm
Lug-to-Lug
42.5mm
47mm
Lug Width
20mm
20mm
Water Resistance
300m
200m
Crystal & Dial
2 specsDial Color
Black
—
Lume
BGW9
None
Movement
2 specsCaliber
Miyota 9039
Miyota 9075
Power Reserve
40h
42h
Pricing
1 specsMSRP
$415
$1,099
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