Casio DW-310 LCD watch

Before Casio came out with their G-Shock range, they produced a line if heavy duty watches (normally with a HD logo on). This is one of the models in that line, but is a little different from the others I've seen.

The watch is a DW-310 and was released in 1982. This watch has the tough styling later found in the G-Shocks, as well as a large water resistance rating. My model of DW-310 here has a dive rating of 20 bar (or 200m water depth), however, there are others online which have the same model number, but a 300m rating (as well as the HD symbol which isn't shown here). This particular model also has the Alarm Chrono title engraved on the case which is missing from the other DW-310 pictures I've seen.

It uses a 690 module which has a 2 line LCD display. The top line covers day and date, while the bottom line is the time (with the squashed first digit and smaller seconds). It has dual time, alarm, stopwatch (down to 0.01 sec), and timer modes. Light is provided by a small orange bulb. There is also a button to turn REM on or off, and there is a marker on the LCD for that too. I don't exactly know what that is for, but my guess would be that it means reminder, and is for a chime function.

My watch doesn't have the original strap, but it looks quite good with this velcro type of strap instead.

Casio Alarm Chronograph - LCD digital and Analogue - A201

Another old digital watch today, and this one is from 1981.

The Casio A201 was an interesting LCD model in that it had analogue and digital displays on the LCD. In the digital display mode, the watch shows day and date on the top row, with time (including seconds) on the bottom row. When switched to the analogue mode with the bottom right button, the seconds numbers remain, but all of the other information is replaced with an LCD display dial. On this display, there is a long hand (2 segments long, 1 segment wide) for the minutes, and a short hand (1 segment long, 2 segments wide) for the hours.

Other modes in the 103 module include a digital stopwatch, alarm, and an 'analogue' countdown timer.

Pulsar Alarm Chronograph Y789-5489

It's retro LCD day today! This watch is a Pulsar Alarm Chronograph watch with a Y789 module. It was released in the early 80s under Seiko sub-brand Pulsar. Watches with the same module were also released under another Seiko sub-brand Alba.

The watch has a 2 line display with date (day) and stopwatch features on the top line, and time, alarm, and chronograph on the bottom line. There is also a small day marker at the top of the LCD.