Which is cheaper, the Henry Archer Relativ or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

At MSRP the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition is the cheaper of the two at $1,150, against $2,199 for the Henry Archer Relativ — a $1,049 gap before any retailer discounting.

Which is bigger, the Henry Archer Relativ or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Henry Archer Relativ wears larger at 40mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a 0.5mm difference across the dial.

Which has a longer power reserve, the Henry Archer Relativ 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 Henry Archer Relativ.

What movement does the Henry Archer Relativ run compared to the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Henry Archer Relativ runs a quartz caliber, while the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition runs a automatic (6R55).

Side by side

Henry Archer RelativvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

Henry Archer Relativ

HAC-REL-SKO-NRO

MSRP $2,199

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

spb517j1

MSRP $1,150

At a glance

13 of 29 specs differ

Diameter

Relativ40mm

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm

Power Reserve

Relativ40h

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h

Water Resistance

Relativ—

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m

MSRP

Relativ$2,199

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

Full specifications

Case

4 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Nero 40mm

Black

Lume

None

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

—

6R55

Type

Quartz

Automatic

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$2,199

$1,150

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