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Casio EFB-730D
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Casio EFB-730D

Ref. EFB-730D
Chronograph
ECB-2300D
ECB-950DB
EFB-108D
EFB-730D
EFK-110D
EFR-539D
EFR-574DE
EFS-S650D
EFV-160D
EFV-620D
EFV-650D
EQS-960PB
3 Variants
Buy from Casio ↗
Buy used on eBay ↗
Retail MSRP
$165
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Avg
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Alternatives
Case
40mm
Power Reserve
—
Movement
Quartz
Water Resistance
100m
Crystal
Sapphire
01

Case Dimensions

Diameter40mm
Thickness11mm
Lug-to-Lug47mm
Lug Width—
02

Case Build

MaterialStainless Steel
Water Resistance100m
03

Crystal & Dial

CrystalSapphire
Dial ColorBlack
04

Movement

TypeQuartz
Beat Rate—
Power Reserve—
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleMatte
Sub-dials3
BezelFixed
Bracelet / strapLug-attached bracelet
HandsBaton
AI-detected from product image · 7/3/2026
In a nutshell

The Casio EFB-730D (ref. EFB-730D) is a quartz chronograph watch, with a 40mm stainless steel case, 11mm thick. Water resistance is rated to 100m, under a sapphire crystal. Manufacturer MSRP is $165.

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