Side by side

Duckworth Prestex Lostock Quartz ChronographvsSeiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition

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

Add a watch
Lostock Quartz Chronograph
Duckworth PrestexLostock Quartz Chronograph
MSRP $660
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
SeikoProspex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
MSRP $2,400
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Buy from Seiko ↗
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At a glance

12 of 29 specs differ
Diameter
Lostock Quartz Chronograph40mm
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition42mm
Power Reserve
Lostock Quartz Chronograph40h
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition40h
Water Resistance
Lostock Quartz Chronograph200m
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition100m
MSRP
Lostock Quartz Chronograph$660
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition$2,400

Full specifications

Case

5 specs
Category
—
Chronograph
Diameter
40mm
42mm
Thickness
13mm
12.9mm
Lug-to-Lug
46mm
49.6mm
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
—
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Miyota 6S21
5X83
Jewels
25
14

Pricing

1 specs
MSRP
$660
$2,400
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