Casio Poptone Calculator watch LDF-40

Today's watch is a modern colourful take on the classic geeky watch - the calculator watch!

This model of calculator watch is by Casio and part of their Poptone range. The Poptone watches are designed to be a fresh take on retro designs with a combination of futuristic and retro designs and bright eye-catching colour schemes.

This watch is the Casio Poptone LDF-40. It was marketed by Casio as colourful and cute, and a fresh take on the classic 8-bit calculator watches. It has the general setup of a calculator watch, with an 8 digit LCD display, which also has a second smaller line above. Below the LCD are the 16 calculator buttons which are a deep design going through a clear plastic sheet to the layer below where the text and design is printed. It uses a 437 module, and as well as the calculator, the watch has alarm, chronograph, and dual time modes.

This particular orange and grey stripy design has the full model number of LDF-40-7ADR. It was first released in October 2008 with a price of ¥6980. This model is still available on the Casio website, and the Casio US site has it for $30.

Casio Poptone Ana-Digi LCF-20

Today's Casio is a very retro inspired design. It reminds me of the Pac Man games, with the barriers with rounded corners, and the dots between them.

This is an Ana-Digi with an inverse dot-matrix LCD, and very small (electronic) dial. The top left display shows seconds, and the bottom can show either date, day, or time.

The watch is run by a 5078 module, and has world time, timer, alarm, and stopwatch. The display also has dots between the various displays. These dots fill up over 10 seconds (normally in pairs), before disappearing over the next 10 sec.

The instructions for the module can be found here, or downloaded direct from Casio here

Casio Poptone LDF50

Today is a colourful futuristic watch in the Casio Poptone range of watches. The aim of the range is to be colourful and cute, and has a mix of moulded plastic and chrome. This particular one is the LD-50-1

The watch has a 3171 module with 4 lines of display on the LCD. From the top there is the day and date, the time, seconds, and at the bottom, a set of 4 concentric rings which build and disappear with the seconds (2 rings have 3 sections, and 2 have only 2).

All of the buttons on this watch are on the front in a block puzzle pattern, and cover adjust, mode, 12/24 hr clock, and mode. Modes available are time, alarm, stopwatch, and dual time.

The watch manual can be found at http://ftp.casio.co.jp/pub/world_manual/wat/en/qw3171.pdf