Which is cheaper, the Casio GST-S100G or the Citizen Promaster Diver Ecozilla?

At MSRP the Casio GST-S100G is the cheaper of the two at $330, against $469 for the Citizen Promaster Diver Ecozilla — a $139 gap before any retailer discounting.

Which is bigger, the Casio GST-S100G or the Citizen Promaster Diver Ecozilla?

The Casio GST-S100G wears larger at 52.4mm versus 48mm for the Citizen Promaster Diver Ecozilla — a 4.4mm difference across the dial.

Which has better water resistance, the Casio GST-S100G or the Citizen Promaster Diver Ecozilla?

The Citizen Promaster Diver Ecozilla is rated to 300m versus 200m for the Casio GST-S100G.

What movement does the Casio GST-S100G run compared to the Citizen Promaster Diver Ecozilla?

The Casio GST-S100G runs a quartz caliber, while the Citizen Promaster Diver Ecozilla runs a solar (B873).

Side by side

Casio GST-S100GvsCitizen Promaster Diver Ecozilla

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

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Casio GST-S100G

GST-S100G

MSRP $330

See the full GST-S100G

Citizen Promaster Diver Ecozilla

BJ8050

MSRP $469

See the full Promaster Diver Ecozilla

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At a glance

13 of 29 specs differ

Diameter

GST-S100G52.4mm

Promaster Diver Ecozilla48mm

Power Reserve

GST-S100G—

Promaster Diver Ecozilla—

Water Resistance

GST-S100G200m

Promaster Diver Ecozilla300m

MSRP

GST-S100G$330

Promaster Diver Ecozilla$469

Full specifications

Case

8 specs

Crystal & Dial

1 specs

AR Coating

Underside

Movement

3 specs

Caliber

—

B873

Type

Quartz

Solar

Power Reserve

—

Pricing

1 specs

MSRP

$330

$469

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Casio GST-S100GvsCitizen Promaster Diver Ecozilla

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