Side by side

Casio EFV-650DvsCasio GM-B2100SD

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

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EFV-650D
CasioEFV-650D
MSRP $120
See the full EFV-650D
GM-B2100SD
CasioGM-B2100SD
MSRP $600
See the full GM-B2100SD
Buy from Casio ↗
Buy used on eBay ↗
Buy from Casio ↗
Buy used on eBay ↗

At a glance

6 of 29 specs differ
Diameter
EFV-650D43.5mm
GM-B2100SD44.4mm
Power Reserve
EFV-650D—
GM-B2100SD—
Water Resistance
EFV-650D100m
GM-B2100SD200m
MSRP
EFV-650D$120
GM-B2100SD$600

Full specifications

Case

5 specs
Category
Chronograph
Sport
Diameter
43.5mm
44.4mm
Thickness
11mm
12.8mm
Lug-to-Lug
48.6mm
49.8mm
Water Resistance
100m
200m

Pricing

1 specs
MSRP
$120
$600
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