Which is cheaper, the Casio GM-B2100SD or the Oblvlo ZM Skeleton?

At MSRP the Oblvlo ZM Skeleton is the cheaper of the two at $285, against $600 for the Casio GM-B2100SD — a $315 gap before any retailer discounting.

Which is bigger, the Casio GM-B2100SD or the Oblvlo ZM Skeleton?

The Oblvlo ZM Skeleton wears larger at 46mm versus 44.4mm for the Casio GM-B2100SD — a 1.6mm difference across the dial.

Which has better water resistance, the Casio GM-B2100SD or the Oblvlo ZM Skeleton?

The Casio GM-B2100SD is rated to 200m versus 50m for the Oblvlo ZM Skeleton.

What movement does the Casio GM-B2100SD run compared to the Oblvlo ZM Skeleton?

The Casio GM-B2100SD runs a quartz caliber, while the Oblvlo ZM Skeleton runs a automatic (Miyota 82S0).

Side by side

Casio GM-B2100SDvsOblvlo ZM Skeleton

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

Add a watch

Casio GM-B2100SD

GM-B2100SD

MSRP $600

See the full GM-B2100SD

Oblvlo ZM Skeleton

MSRP $285

See the full ZM Skeleton

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At a glance

15 of 29 specs differ

Diameter

GM-B2100SD44.4mm

ZM Skeleton46mm

Power Reserve

GM-B2100SD—

ZM Skeleton42h

Water Resistance

GM-B2100SD200m

ZM Skeleton50m

MSRP

GM-B2100SD$600

ZM Skeleton$285

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal

Mineral

Sapphire

AR Coating

—

Dial Color

Black

—

Movement

4 specs

Caliber

—

Miyota 82S0

Type

Quartz

Automatic

Power Reserve

—

42h

Jewels

Pricing

1 specs

MSRP

$600

$285

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Casio GM-B2100SDvsOblvlo ZM Skeleton

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