Side by side
Borealis Watch Co. LusitanovsSheffield 1A
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Lusitano39mm
1A40mm
Power Reserve
Lusitano60h
1A—
Water Resistance
Lusitano100m
1A200m
MSRP
Lusitano$350
1A$223
Full specifications
Case
5 specsCategory
Dress
Diver
Diameter
39mm
40mm
Thickness
12.60mm
12.8mm
Lug-to-Lug
47mm
46mm
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
Black
White/Blue
Lume
Yes
Swiss blue lume
Movement
2 specsCaliber
Miyota 8315
Seiko NH35A
Power Reserve
60h
—
Pricing
1 specsMSRP
$350
$223
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