Which is cheaper, the Casio GM-2100 or the Citizen Brycen?

At MSRP the Casio GM-2100 is the cheaper of the two at $220, against $319 for the Citizen Brycen — a $99 gap before any retailer discounting.

Which is bigger, the Casio GM-2100 or the Citizen Brycen?

The Citizen Brycen wears larger at 44.8mm versus 44.4mm for the Casio GM-2100 — a 0.4mm difference across the dial.

Which has better water resistance, the Casio GM-2100 or the Citizen Brycen?

The Casio GM-2100 is rated to 200m versus 100m for the Citizen Brycen.

What movement does the Casio GM-2100 run compared to the Citizen Brycen?

The Casio GM-2100 runs a quartz caliber, while the Citizen Brycen runs a solar (Citizen Eco-Drive H500).

Side by side

Casio GM-2100vsCitizen Brycen

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

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Casio GM-2100

GM-2100

MSRP $220

See the full GM-2100

Citizen Brycen

AT2585

MSRP $319

See the full Brycen

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At a glance

13 of 29 specs differ

Diameter

GM-210044.4mm

Brycen44.8mm

Power Reserve

GM-2100—

Brycen—

Water Resistance

GM-2100200m

Brycen100m

MSRP

GM-2100$220

Brycen$319

Full specifications

Case

8 specs

Crystal & Dial

1 specs

AR Coating

—

Movement

3 specs

Caliber

—

Citizen Eco-Drive H500

Type

Quartz

Solar

Power Reserve

—

Pricing

1 specs

MSRP

$220

$319

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Casio GM-2100vsCitizen Brycen

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