Which is cheaper, the Grand Seiko STGK031 or the Oblvlo TM Simple?

At MSRP the Oblvlo TM Simple is the cheaper of the two at $149, against $6,600 for the Grand Seiko STGK031 — a $6,451 gap before any retailer discounting.

Which is bigger, the Grand Seiko STGK031 or the Oblvlo TM Simple?

The Oblvlo TM Simple wears larger at 41mm versus 30mm for the Grand Seiko STGK031 — a 11mm difference across the dial.

Which has better water resistance, the Grand Seiko STGK031 or the Oblvlo TM Simple?

The Grand Seiko STGK031 is rated to 100m versus 50m for the Oblvlo TM Simple.

Which has a longer power reserve, the Grand Seiko STGK031 or the Oblvlo TM Simple?

The Grand Seiko STGK031 carries a 50-hour power reserve against 42 hours on the Oblvlo TM Simple.

What movement does the Grand Seiko STGK031 run compared to the Oblvlo TM Simple?

Both watches run automatic movements — the Grand Seiko STGK031 uses the 9S27 and the Oblvlo TM Simple uses the Miyota 8215.

Side by side

Grand Seiko STGK031vsOblvlo TM Simple

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

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Grand Seiko STGK031

stgk031g

MSRP $6,600

Oblvlo TM Simple

TM-SIM

MSRP $149

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At a glance

12 of 29 specs differ

Diameter

STGK03130mm

TM Simple41mm

Power Reserve

STGK03150h

TM Simple42h

Water Resistance

STGK031100m

TM Simple50m

MSRP

STGK031$6,600

TM Simple$149

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Lume

None

Super-LumiNova

Movement

3 specs

Caliber

9S27

Miyota 8215

Power Reserve

50h

42h

Jewels

Pricing

1 specs

MSRP

$6,600

$149

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Grand Seiko STGK031vsOblvlo TM Simple

At a glance

Full specifications

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