Which is cheaper, the Seiko Prospex SPEEDTIMER Mechanical or the Oblvlo TM Simple?

At MSRP the Oblvlo TM Simple is the cheaper of the two at $149, against $995 for the Seiko Prospex SPEEDTIMER Mechanical — a $846 gap before any retailer discounting.

Which is bigger, the Seiko Prospex SPEEDTIMER Mechanical or the Oblvlo TM Simple?

The Oblvlo TM Simple 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 Seiko Prospex SPEEDTIMER Mechanical or the Oblvlo TM Simple?

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

Which has a longer power reserve, the Seiko Prospex SPEEDTIMER Mechanical or the Oblvlo TM Simple?

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

What movement does the Seiko Prospex SPEEDTIMER Mechanical run compared to the Oblvlo TM Simple?

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

Side by side

Seiko Prospex SPEEDTIMER MechanicalvsOblvlo TM Simple

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

Seiko Prospex SPEEDTIMER Mechanical

spb513j1

MSRP $995

Oblvlo TM Simple

TM-SIM

MSRP $149

At a glance

12 of 29 specs differ

Diameter

Prospex SPEEDTIMER Mechanical39.5mm

TM Simple41mm

Power Reserve

Prospex SPEEDTIMER Mechanical72h

TM Simple42h

Water Resistance

Prospex SPEEDTIMER Mechanical200m

TM Simple50m

MSRP

Prospex SPEEDTIMER Mechanical$995

TM Simple$149

Full specifications

Case

5 specs

Crystal & Dial

3 specs

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Lume

LumiBrite on hands and index(es)

Super-LumiNova

Movement

3 specs

Caliber

6R55

Miyota 8215

Power Reserve

72h

42h

Jewels

Pricing

1 specs

MSRP

$995

$149

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Seiko Prospex SPEEDTIMER MechanicalvsOblvlo TM Simple

At a glance

Full specifications

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