Side by side

Casio GST-S100GvsSeiko Essentials Chronograph

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

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GST-S100G
CasioGST-S100G
MSRP $330
See the full GST-S100G
Essentials Chronograph
SeikoEssentials Chronograph
MSRP $265
See the full Essentials Chronograph
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Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

14 of 29 specs differ
Diameter
GST-S100G52.4mm
Essentials Chronograph41.5mm
Power Reserve
GST-S100G—
Essentials Chronograph—
Water Resistance
GST-S100G200m
Essentials Chronograph100m
MSRP
GST-S100G$330
Essentials Chronograph$265

Full specifications

Case

8 specs
Category
Sport
Chronograph
Diameter
52.4mm
41.5mm
Thickness
16.1mm
12.1mm
Lug-to-Lug
59.1mm
46.5mm
Lug Width
—
22mm
Material
Resin / Stainless steel
—
Finish
—
—
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Mineral
Hardlex
AR Coating
No
—
Dial Color
Black
—

Movement

2 specs
Caliber
—
Seiko 8T63
Power Reserve
—
0h

Pricing

1 specs
MSRP
$330
$265
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