Casio Model Numbers – What Do They Mean?

Casio is a popular brand in the world, not least when it comes to their watch collection, but what do the model numbers mean?

The model number is not a random composition of characters, but has a special meaning and in this article you will be guided in how to understand the number.

Why the Casio Model Number Matters

Sometimes you come across two ads that apparently describe the same Casio watch, but have different model numbers.

In such situations, it’s nice to understand what the number means, so you can avoid a mispurchase.

Let me give an example that I have experienced myself.

When Casio launched their line of radio-controlled watches (known by the name of Wave Ceptor) they were produced for local regions and countries, so the radio receiver in many models was only able to receive signals from 1 or 2 of the geographically closest radio transmitters.

It wasn’t a problem if you bought your watch from a local official Casio dealer, but as commerce became widespread on the internet, the risk of buying a watch tailored to local conditions increased.

This meant that you could risk buying a Wave Ceptor watch with a radio receiver that wouldn’t work in your local area because the watch was out of range of the radio transmitter it was intended to receive from.

Fortunately that has changed because nowadays many of Casio’s radio-controlled watches feature Multi Band 6 meaning they can pick up signals from transmitters all over the world.

How to Read the Casio Watch Model Number

All casio watches have a module number and a model number.

The module number consists of 3 or 4 digits and is the number of the movement in the watch.

It is usually printed in a square on the back of the wach to the left of the model number.

To the right of the module number is the model number. The model number usually consists of 3 parts separated by dashes, but not always. Sometimes the model number only has 2 parts.

On the back of Casio’s watches you will typically only see the first 2 parts of the model number, as you can see in the picture above.

In ads you will often see the full model number with all 3 parts included.


Fully understandable, but let’s try to explore this a bit more.

The Casio Model Number Explained

For most models, the model number consists of 3 basic parts, typically separated by a dash.

In this article, we will designate the 3 parts as 1st Part, 2nd Part and 3rd Part.

These 3 basic parts can be further divided, but we will come back to that later.

To promote understanding, we will look at a few concrete examples later, but first we will review the general meaning of the model number.

1st Part (TYPE)

1st Part describes the type of watch and which series the watch belongs to.

In the case of a watch from the G-Shock line, the model number will typically start with “G” or “GS”, whereas a watch from the Wave Ceptor series will typically start with a “W”.


1st PartFeatures
AQAnalogue + Quartz
AWAnalogue + Water Resistant
BA / BGBaby-G
DBCDatabank + Calculator
G / GG / GSG-Shock
GWG-Shock + Wave Ceptor
GWFG-Shock + Wave Ceptor + Frogman
PRGPro Trek
PRWPro Trek + Wave Ceptor
WVWace Ceptor
WVAWave Ceptor (Analogue)
2nd Part (MODEL)

The mid part of the model number is an ID number and does not really say much about the specifications, but sometimes the ID is followed by one or more letters describing more details.


2nd PartMeaning
DStainless Steel Bracelet
TTitanium Bracelet
LLeather Band
RBRed Bull Model
WCWorld Cup Edition
3rd Part (SALE REGION)

The suffix of the model number basically refers to the Color Code, Order Number and Sale Region.

It may seem odd to add information about the sale region in a watch’s model number, but in fact it is a help in some cases, cf. the above example with radio-controlled watches.

In general the suffix of the model number should not be of greater concern if you plan to buy a Casio watch though because Casio today manufactures their watches mainly for sale worldwide.

This might also explain why Casio doesn’t print this part on the back of their watches.

However, if you have a choice between a model targeted at sales in your local area and a model produced with sales abroad in mind, you should always choose the first option.

Color Code:


Order Numbers:

A, B, C

Sale Region:

J / JFJapan
V / VERExport
R / RL / LUnknown
CRChinese Export
DRWide Distribution
EC / EF / EREurope


Let’s take a look at a couple of Casio models to see if we can understand their model numbers.

Example 1: Casio DBC-611GE-1EF

The first example is the Casio DBC-611GE-1EF.

This model is from the Vintage series and the 1st Part of the model number is “DBC”.

According to the specifications this watch features a databank and a calculator, so it’s reasonable to assume that “DBC” is a reference to the words “DataBank” and “Calculator”.

The 2nd Part of the model number is “611GE”.

This particular model is made in a special gold finish, so probably the letters ”GE” refers to “Gold Edition”.

The 3rd Part of this model’s number is “1EF” and does in fact contain 2 different types of information.

1” is the color code and “EF” is the sale region.

As you can see from the Color Code list above “1” is a reference to the color Black, so this piece of information tells us that Black is a dominant color in this model.

EF” means that this model was produced for the European market.

From the list concerning the 1st Part of the model number, we see that “GG” refers to a model from the G-Shock line.

1000” is the ID for this particular model.

The suffix in this example is a bit more complex as it consists of 3 different pieces of information.

The number “1” means that the case is Black.

The number “5” means that the dial and/or the hands are Brown.

Finally the letters “CR” tells us that this model was made for Chinese Export.


Please note that this guide is meant to serve as a help to read and understand the model numbers of Casio´s watches only.

Any contribution to improve this guide is most welcome, so if you have knowledge worth sharing with us, please comment below or shoot us an email, thanks.

Image credit: Casio.

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Claus is a laboratory technician, autodidact guitarist, songwriter, music publisher, co-founder of App Division ApS, dad of fraternal twin boys, Sci-Fi lover, incarnated Mike Oldfield fan, pro world peace and an incorrigible coffee addict.


  1. Hi, thank you for your article. Do you know what’s the meaning of an E at the end of the second part? I’m trying to know what’s the difference between the two Casio models DBC-611 and DBC-611E. Thanks again

    • At this point I do not, but If there’s letters included in the second part of the model number, it’s usually a reference to a minor detail.

      I’ll leave your fine question here to see if anyone can clarify further.

    • The difference between the CASIO LCW-M100DE-7AJF and LCW-M100D-7AJF is that the LCW-M100DE-7AJF dial has *NO* numbers and the LCW-M100D-7AJF includes numbers for 12-hour and 24-hour time as well as seconds (at five second intervals). Perhaps, in this case, the “E” in the model number means “numbers excluded.” .

  2. Hi havec a casio 350b612w watch bought in Canada in1995 please advise how I can check that’s original and current estimated value rfds

    • Hi George,

      Thanks for your comment.

      In your case, I would simply take my watch to an authorized Casio dealer and let them have a look. I’m sure they can provide you with all the answers you need.

  3. I cant seem to fine the story behind the MODEL GD 200 9R. I read it was release on July of last year(2021). it can be link to our smartphone via bluetooth. Appreciate if anyone can provide me the info

  4. Finally, somebody has the intelligence to explain the Casio model code numbers and their meanings. Great job.
    ie. 527D-1AV and 527D-1AVEF
    Amazon has the EF model at $40 more for the same watch.

  5. Would be a helpful guide, but how do I identify this, based on your guide:
    Any suggestions?

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