Which is cheaper, the Lum-Tec RPM or the Yema Skin Diver CMM.20?

At MSRP the Lum-Tec RPM is the cheaper of the two at $495, against $2,372 for the Yema Skin Diver CMM.20 — a $1,877 gap before any retailer discounting.

Which is bigger, the Lum-Tec RPM or the Yema Skin Diver CMM.20?

The Lum-Tec RPM wears larger at 43mm versus 39.5mm for the Yema Skin Diver CMM.20 — a 3.5mm difference across the dial.

Which has better water resistance, the Lum-Tec RPM or the Yema Skin Diver CMM.20?

The Yema Skin Diver CMM.20 is rated to 200m versus 50m for the Lum-Tec RPM.

What movement does the Lum-Tec RPM run compared to the Yema Skin Diver CMM.20?

The Lum-Tec RPM runs a quartz caliber, while the Yema Skin Diver CMM.20 runs a automatic (Yema CMM.20).

Side by side

Lum-Tec RPMvsYema Skin Diver CMM.20

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

Lum-Tec RPM

rpm-3

MSRP $495

Yema Skin Diver CMM.20

yema-skin-diver-cmm-20-12-25-20-11-sn-m3

MSRP $2,372

At a glance

11 of 29 specs differ

Diameter

RPM43mm

Skin Diver CMM.2039.5mm

Power Reserve

RPM40h

Skin Diver CMM.2040h

Water Resistance

RPM50m

Skin Diver CMM.20200m

MSRP

RPM$495

Skin Diver CMM.20$2,372

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

RPM 3

Black

Movement

2 specs

Caliber

—

Yema CMM.20

Type

Quartz

Automatic

Pricing

1 specs

MSRP

$495

$2,372

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Lum-Tec RPMvsYema Skin Diver CMM.20

At a glance

Full specifications

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