Which is cheaper, the Oblvlo JM Space or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

At MSRP the Oblvlo JM Space is the cheaper of the two at $315, against $1,150 for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a $835 gap before any retailer discounting.

Which is bigger, the Oblvlo JM Space or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Oblvlo JM Space wears larger at 42mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a 2.5mm difference across the dial.

Which has better water resistance, the Oblvlo JM Space or the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition?

The Oblvlo JM Space is rated to 50m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition.

Which has a longer power reserve, the Oblvlo JM Space 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 Oblvlo JM Space.

Side by side

Oblvlo JM SpacevsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

Oblvlo JM Space

JM-SPACE

MSRP $315

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

spb517j1

MSRP $1,150

At a glance

12 of 29 specs differ

Diameter

JM Space42mm

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm

Power Reserve

JM Space40h

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h

Water Resistance

JM Space50m

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m

MSRP

JM Space$315

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

Full specifications

Case

5 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

—

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$315

$1,150

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