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Seiko Prospex SPEEDTIMERvsTimefactors PRS-40

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

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Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $750
PRS-40
TimefactorsPRS-40
MSRP $315
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Buy from Timefactors ↗
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At a glance

11 of 29 specs differ
Diameter
Prospex SPEEDTIMER41.4mm
PRS-4040.2mm
Power Reserve
Prospex SPEEDTIMER40h
PRS-4040h
Water Resistance
Prospex SPEEDTIMER100m
PRS-40100m
MSRP
Prospex SPEEDTIMER$750
PRS-40$315

Full specifications

Case

5 specs
Category
Chronograph
—
Diameter
41.4mm
40.2mm
Thickness
13mm
12.25mm
Lug-to-Lug
45.9mm
53.5mm
Lug Width
21mm
22mm

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
SuperLuminova C3

Movement

2 specs
Caliber
V192
Seiko VK61
Type
Quartz
Mecaquartz

Pricing

1 specs
MSRP
$750
$315
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