CITIZEN QUARTZ HYPER AQUALAND is a full-function diver watch with digital display and an electronic depth gauge. This watch measures and displays depth as soon as you start diving, due to the water sensor. While diving, this watch measures the water temperature; and when not diving, the air temperature. While you are diving, various log data is recorded
This manual explains how to use the Citizen MA9XXX Quartz Hyper Aqualand digital diver's watch, covering its special functions such as depth measurement, water‑temperature display, and dive‑log recording. It also details safety precautions, proper diving techniques, and maintenance requirements.
The document describes the various operating modes (time, calendar, alarm, diving, surface, log, and transfer), how to set the time, alarm, and dive parameters, and how to transfer recorded data to a personal computer via an RS‑232C cable. Battery replacement, reset procedures, and specifications are also included.
| Type | Digital divers watch with water depth meter, thermometer, water sensor |
|---|---|
| Quartz crystal frequency | 32,768 Hz |
| Time accuracy | within +20 seconds per month (normal temperature) |
| Water depth meter accuracy | within +3 % of displayed figure plus 30 cm |
| Display method | Digital system display |
| Operating temperature range | -10 °C to 60 °C |
| Maximum depth measurement | 80 m (260 ft) |
| Battery life | about 3 years |
The watch can measure depth up to 80 m (260 ft).
The battery lasts about three years after replacement.
Put the watch in transfer mode and connect it to a PC with an RS‑232C cable; the data will be sent via the communications unit.
Press all four buttons simultaneously for more than two seconds, then release them.