Helgray SpeedstervsSeiko Prospex Speedtimer

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Speedster
HelgraySpeedster

MSRP $149

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Prospex Speedtimer
SeikoProspex Speedtimer

MSRP $725

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Buy from Seiko Used on eBay

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Helgray Speedster at true scale

Speedster

Seiko Prospex Speedtimer at true scale

Prospex Speedtimer

Diameter

39mm

39mm

Lug-to-Lug

46mm

45.5mm

lowest

Thickness

n/a

13.3mm

Water Resistance

30m

100m

highest

MSRP

$149

lowest

$725

Movement

Miyota 6S21

Seiko V192

Case

3 specs
Thickness
n/a
13.3mm
Lug-to-Lug
46mm
45.5mm
Water Resistance
30m
100m

Crystal & Dial

3 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

1 specs
Caliber
Miyota 6S21
Seiko V192

Pricing

1 specs
MSRP
$149
$725
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