Side by side
Loresum LS01vsSeiko Prospex SPEEDTIMER Mechanical Chronograph
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
LS0142mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
LS0140h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
LS0150m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
LS01—
Prospex SPEEDTIMER Mechanical Chronograph$2,500
Full specifications
Case
5 specsCategory
—
Chronograph
Thickness
12.5mm
14.6mm
Lug-to-Lug
51mm
49.5mm
Lug Width
22mm
20mm
Water Resistance
50m
100m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
Swiss Super-LumiNova® BGW9
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Miyota 9015
8R48
Power Reserve
40h
45h
Jewels
25
34
Pricing
1 specsMSRP
—
$2,500
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