Which is cheaper, the Helgray Kensington Quartz or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

At MSRP the Helgray Kensington Quartz is the cheaper of the two at $299, against $1,150 for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a $851 gap before any retailer discounting.

Which is bigger, the Helgray Kensington Quartz or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition wears larger at 39.5mm versus 38mm for the Helgray Kensington Quartz — a 1.5mm difference across the dial.

Which has better water resistance, the Helgray Kensington Quartz or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Helgray Kensington Quartz is rated to 50m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition.

Which has a longer power reserve, the Helgray Kensington Quartz or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition carries a 72-hour power reserve against 40 hours on the Helgray Kensington Quartz.

What movement does the Helgray Kensington Quartz run compared to the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Helgray Kensington Quartz runs a quartz caliber (Miyota GL22), while the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition runs a automatic (6R55).

Side by side

Helgray Kensington QuartzvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

Helgray Kensington Quartz

kensington

MSRP $299

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

spb517j1

MSRP $1,150

At a glance

12 of 29 specs differ

Diameter

Kensington Quartz38mm

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm

Power Reserve

Kensington Quartz40h

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h

Water Resistance

Kensington Quartz50m

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m

MSRP

Kensington Quartz$299

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150

Full specifications

Case

4 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Yes

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

Miyota GL22

6R55

Type

Quartz

Automatic

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$299

$1,150

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