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

At MSRP the Oblvlo BLM Rotor is the cheaper of the two at $322, against $1,150 for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a $828 gap before any retailer discounting.

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

The Oblvlo BLM Rotor wears larger at 41mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition — a 1.5mm difference across the dial.

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

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

Which has a longer power reserve, the Oblvlo BLM Rotor 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 48 hours on the Oblvlo BLM Rotor.

Side by side

Oblvlo BLM RotorvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

Oblvlo BLM Rotor

BLM-ROTOR

MSRP $322

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

spb517j1

MSRP $1,150

At a glance

11 of 29 specs differ

Diameter

BLM Rotor41mm

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm

Power Reserve

BLM Rotor48h

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h

Water Resistance

BLM Rotor50m

Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m

MSRP

BLM Rotor$322

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

Super-LumiNova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

—

6R55

Power Reserve

48h

72h

Jewels

Pricing

1 specs

MSRP

$322

$1,150

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