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Casio EFB-730DvsCasio GMD-B300

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

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EFB-730D
CasioEFB-730D
MSRP $165
See the full EFB-730D
GMD-B300
CasioGMD-B300
MSRP $135
See the full GMD-B300
Buy from Casio ↗
Buy used on eBay ↗
Buy from Casio ↗
Buy used on eBay ↗

At a glance

8 of 29 specs differ
Diameter
EFB-730D40mm
GMD-B30043.8mm
Power Reserve
EFB-730D—
GMD-B300—
Water Resistance
EFB-730D100m
GMD-B300200m
MSRP
EFB-730D$165
GMD-B300$135

Full specifications

Case

6 specs
Category
Chronograph
Sport
Diameter
40mm
43.8mm
Thickness
11mm
12mm
Lug-to-Lug
47mm
46.4mm
Material
Stainless Steel
Resin / Bio-based resin
Water Resistance
100m
200m

Crystal & Dial

1 specs
Crystal
Sapphire
Mineral

Pricing

1 specs
MSRP
$165
$135
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