Which is cheaper, the Lum-Tec RPM or the Grand Seiko SLGH017?

At MSRP the Lum-Tec RPM is the cheaper of the two at $495, against $10,500 for the Grand Seiko SLGH017 — a $10,005 gap before any retailer discounting.

Which is bigger, the Lum-Tec RPM or the Grand Seiko SLGH017?

The Lum-Tec RPM wears larger at 43mm versus 40mm for the Grand Seiko SLGH017 — a 3mm difference across the dial.

Which has better water resistance, the Lum-Tec RPM or the Grand Seiko SLGH017?

The Grand Seiko SLGH017 is rated to 100m versus 50m for the Lum-Tec RPM.

Which has a longer power reserve, the Lum-Tec RPM or the Grand Seiko SLGH017?

The Grand Seiko SLGH017 carries a 80-hour power reserve against 40 hours on the Lum-Tec RPM.

What movement does the Lum-Tec RPM run compared to the Grand Seiko SLGH017?

The Lum-Tec RPM runs a quartz caliber, while the Grand Seiko SLGH017 runs a automatic (9SA5).

Side by side

Lum-Tec RPMvsGrand Seiko SLGH017

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

Lum-Tec RPM

rpm-3

MSRP $495

Grand Seiko SLGH017

slgh017g

MSRP $10,500

At a glance

12 of 29 specs differ

Diameter

RPM43mm

SLGH01740mm

Power Reserve

RPM40h

SLGH01780h

Water Resistance

RPM50m

SLGH017100m

MSRP

RPM$495

SLGH017$10,500

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

RPM 3

Black

Movement

3 specs

Caliber

—

9SA5

Type

Quartz

Automatic

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$495

$10,500

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Lum-Tec RPMvsGrand Seiko SLGH017

At a glance

Full specifications

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