Side by side
Borealis Watch Co. Porto CovovsSartory Billard SB04-E
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Porto Covo40mm
SB04-E39.5mm
Power Reserve
Porto Covo40h
SB04-E68h
Water Resistance
Porto Covo300m
SB04-E100m
MSRP
Porto Covo$415
SB04-E$3,100
Full specifications
Case
6 specsCategory
Diver
Dress
Diameter
40mm
39.5mm
Thickness
11.6mm
10.3mm
Lug-to-Lug
42.5mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
100m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Lume
BGW9
Super-LumiNova BGW9
Movement
3 specsCaliber
Miyota 9039
LJP G101ET
Power Reserve
40h
68h
Jewels
25
24
Pricing
1 specsMSRP
$415
$3,100
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