Which is cheaper, the Lum-Tec RPM or the Seiko Diamond Collection?

At MSRP the Lum-Tec RPM is the cheaper of the two at $495, against $525 for the Seiko Diamond Collection — a $30 gap before any retailer discounting.

Which is bigger, the Lum-Tec RPM or the Seiko Diamond Collection?

The Lum-Tec RPM wears larger at 43mm versus 32mm for the Seiko Diamond Collection — a 11mm difference across the dial.

Which has better water resistance, the Lum-Tec RPM or the Seiko Diamond Collection?

The Lum-Tec RPM is rated to 50m versus 10m for the Seiko Diamond Collection.

What movement does the Lum-Tec RPM run compared to the Seiko Diamond Collection?

The Lum-Tec RPM runs a quartz caliber, while the Seiko Diamond Collection runs a automatic (6N32).

Side by side

Lum-Tec RPMvsSeiko Diamond Collection

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

Lum-Tec RPM

rpm-3

MSRP $495

Seiko Diamond Collection

sur579

MSRP $525

At a glance

11 of 29 specs differ

Diameter

RPM43mm

Diamond Collection32mm

Power Reserve

RPM40h

Diamond Collection40h

Water Resistance

RPM50m

Diamond Collection100m

MSRP

RPM$495

Diamond Collection$525

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

RPM 3

Black

Movement

2 specs

Caliber

—

6N32

Type

Quartz

Automatic

Pricing

1 specs

MSRP

$495

$525

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Lum-Tec RPMvsSeiko Diamond Collection

At a glance

Full specifications

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