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Loresum LS05vsSeiko Prospex SPEEDTIMER Mechanical

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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LS05
LoresumLS05
Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995
Buy from Loresum ↗
Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

13 of 29 specs differ
Diameter
LS0539.5mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
LS0540h
Prospex SPEEDTIMER Mechanical72h
Water Resistance
LS0550m
Prospex SPEEDTIMER Mechanical200m
MSRP
LS05—
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

5 specs
Category
—
Chronograph
Thickness
9mm
12mm
Lug-to-Lug
46.5mm
44.5mm
Lug Width
—
20mm
Water Resistance
50m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Green
Black
Lume
Super-LumiNova® BGW9
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9015
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
—
$995
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