Side by side
Borealis Watch Co. LusitanovsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Lusitano39mm
Prospex SPEEDTIMER42.5mm
Power Reserve
Lusitano60h
Prospex SPEEDTIMER45h
Water Resistance
Lusitano100m
Prospex SPEEDTIMER100m
MSRP
Lusitano$350
Prospex SPEEDTIMER$3,000
Full specifications
Case
4 specsCategory
Dress
Chronograph
Diameter
39mm
42.5mm
Thickness
12.60mm
15.1mm
Lug-to-Lug
47mm
50mm
Crystal & Dial
3 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
Yes
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 8315
8R46
Power Reserve
60h
45h
Jewels
25
34
Pricing
1 specsMSRP
$350
$3,000
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