The manual introduces the operation methods of 3088 watch functions. The watch has the functions of measuring longitude, moon tide interval, moon phase diagram and tide diagram. However, these functions are not for professional or industrial precision measurement, and are for reference only.
This manual provides step‑by‑step instructions for operating the Casio 3088 watch, covering basic time and date setup, world‑time zones, tide and moon information, stopwatch, countdown timer, multiple alarm types, and both manual and automatic illumination. It also includes safety warnings for the illumination function and details on button operations.
The document lists technical data such as UTC offset ranges, countdown timer limits, and stopwatch display capacity, and offers reference tables for city time‑zone differentials and lunitidal intervals. All functions are accessed via the A, B, C, and D buttons as described in each section. This manual is written in Chinese.
| UTC offset range | -12.0 to +14.0 hours |
|---|---|
| Countdown timer range | 1 minute to 24 hours |
| Stopwatch display limit | 23:59:59.99 |
Hold the B button for about three seconds on any screen (except the setting screens) to toggle the automatic illumination on or off.