Side by side
Borealis Watch Co. Porto CovovsStraton Straton Sportiva and Volante
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
20 of 29 specs differDiameter
Porto Covo40mm
Straton Sportiva and Volante38mm
Power Reserve
Porto Covo40h
Straton Sportiva and Volante—
Water Resistance
Porto Covo300m
Straton Sportiva and Volante100m
MSRP
Porto Covo$415
Straton Sportiva and Volante$599
Full specifications
Case
9 specsCategory
Diver
Chronograph
Diameter
40mm
38mm
Thickness
11.6mm
12mm
Lug-to-Lug
42.5mm
38mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
—
Water Resistance
300m
100m
Caseback
Solid
Sportiva closed, Volante open Sapphire Crystal
Crystal & Dial
5 specsCrystal Shape
Flat
—
AR Coating
Inner
Yes
Dial Color
Black
—
Indices
Applied
—
Lume
BGW9
None
Movement
5 specsCaliber
Miyota 9039
VK64
Type
Automatic
Quartz
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Pricing
1 specsMSRP
$415
$599
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