Which is cheaper, the Oblvlo BLM II or the Seiko Prospex SPEEDTIMER Mechanical?

At MSRP the Oblvlo BLM II is the cheaper of the two at $265, against $995 for the Seiko Prospex SPEEDTIMER Mechanical — a $730 gap before any retailer discounting.

Which is bigger, the Oblvlo BLM II or the Seiko Prospex SPEEDTIMER Mechanical?

The Oblvlo BLM II wears larger at 41mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical — a 1.5mm difference across the dial.

Which has better water resistance, the Oblvlo BLM II or the Seiko Prospex SPEEDTIMER Mechanical?

The Oblvlo BLM II is rated to 50m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

Which has a longer power reserve, the Oblvlo BLM II or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical carries a 72-hour power reserve against 42 hours on the Oblvlo BLM II.

What movement does the Oblvlo BLM II run compared to the Seiko Prospex SPEEDTIMER Mechanical?

Both watches run automatic movements — the Oblvlo BLM II uses the Miyota 8215 and the Seiko Prospex SPEEDTIMER Mechanical uses the 6R55.

Side by side

Oblvlo BLM IIvsSeiko Prospex SPEEDTIMER Mechanical

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

Oblvlo BLM II

BLM-2

MSRP $265

Seiko Prospex SPEEDTIMER Mechanical

spb513j1

MSRP $995

At a glance

12 of 29 specs differ

Diameter

BLM II41mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

BLM II42h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

BLM II50m

Prospex SPEEDTIMER Mechanical200m

MSRP

BLM II$265

Prospex SPEEDTIMER Mechanical$995

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

Miyota 8215

6R55

Power Reserve

42h

72h

Jewels

Pricing

1 specs

MSRP

$265

$995

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Oblvlo BLM IIvsSeiko Prospex SPEEDTIMER Mechanical

At a glance

Full specifications

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