Which is cheaper, the Oblvlo BLM Rotor or the Casio GM-2100?

At MSRP the Casio GM-2100 is the cheaper of the two at $220, against $322 for the Oblvlo BLM Rotor — a $102 gap before any retailer discounting.

Which is bigger, the Oblvlo BLM Rotor or the Casio GM-2100?

The Casio GM-2100 wears larger at 44.4mm versus 41mm for the Oblvlo BLM Rotor — a 3.4mm difference across the dial.

Which has better water resistance, the Oblvlo BLM Rotor or the Casio GM-2100?

The Casio GM-2100 is rated to 200m versus 50m for the Oblvlo BLM Rotor.

What movement does the Oblvlo BLM Rotor run compared to the Casio GM-2100?

The Oblvlo BLM Rotor runs a automatic caliber, while the Casio GM-2100 runs a quartz.

Side by side

Oblvlo BLM RotorvsCasio GM-2100

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

Add a watch

Oblvlo BLM Rotor

MSRP $322

See the full BLM Rotor

Casio GM-2100

GM-2100

MSRP $220

See the full GM-2100

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At a glance

15 of 29 specs differ

Diameter

BLM Rotor41mm

GM-210044.4mm

Power Reserve

BLM Rotor48h

GM-2100—

Water Resistance

BLM Rotor50m

GM-2100200m

MSRP

BLM Rotor$322

GM-2100$220

Full specifications

Case

7 specs

Diameter

41mm

44.4mm

Thickness

12mm

11.8mm

Lug-to-Lug

0mm

49.3mm

Lug Width

0mm

—

Material

Stainless Steel

Resin / Stainless steel

Finish

—

Water Resistance

50m

200m

Crystal & Dial

4 specs

Crystal

Sapphire

Mineral

AR Coating

—

Dial Color

—

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

—

Type

Automatic

Quartz

Power Reserve

48h

—

Pricing

1 specs

MSRP

$322

$220

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