Side by side
Borealis Watch Co. Porto CovovsTrafford Watch Co Daytripper
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
18 of 29 specs differDiameter
Porto Covo40mm
Daytripper39mm
Power Reserve
Porto Covo40h
Daytripper42 hoursh
Water Resistance
Porto Covo300m
Daytripper50m
MSRP
Porto Covo$415
Daytripper$799
Full specifications
Case
9 specsCategory
Diver
Sport
Diameter
40mm
39mm
Thickness
11.6mm
0mm
Lug-to-Lug
42.5mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Hardened scratch-resistant coating
Water Resistance
300m
50m
Caseback
Solid
—
Crystal & Dial
4 specsCrystal Shape
Flat
—
Dial Color
Black
I-40 Black
Indices
Applied
—
Lume
BGW9
Super-LumiNova BGW9
Movement
4 specsCaliber
Miyota 9039
Miyota 9075
Beat Rate
28,800 vph
28,800 vph
Power Reserve
40h
42 hoursh
Jewels
25
24
Pricing
1 specsMSRP
$415
$799
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