Casio SPS-300 / GL-190 Watch User Manual

Important Information - Read First

This section provides crucial information regarding the operation and care of your Casio watch.

• Temperature Limits: Avoid exposing the watch to extreme temperatures.
• Handling: While designed for normal use, avoid rough handling and dropping the watch.
• Strap Tightness: Do not fasten the watch strap too tightly; a finger should fit between your wrist and the strap.
• Cleaning: Use a dry soft cloth. For stubborn dirt, use a soft cloth dampened with a mild neutral detergent solution. Never use volatile solvents like gasoline, thinners, or aerosol cleaners.
• Storage: Store the watch in a dry place when not in use.
• Chemical Avoidance: Prevent contact with gasoline, cleaning solvents, spray aerosols, adhesives, paints, etc., as these can cause damage to gaskets, the case, and polishing due to chemical reactions.

Battery

The battery installed at the factory may be discharged during delivery and storage. If the display becomes dim or characters are faint, replace the battery at an authorized CASIO service center or CASIO dealer.

Water Resistance

Your watch is classified by water resistance level (I to V) according to its protection against water. Refer to the table below to ensure correct usage.

Notes:

• Rating I: The watch is not water-resistant. Avoid any contact with moisture.
• Rating II (WR / Water Resistant): Indicates water resistance according to ISO 2281. Short-term contact with water is acceptable.
• Rating III (5 Bar / 50 Meters): Suitable for showering and short periods of swimming.
• Rating IV (10 Bar / 100 Meters): Suitable for regular swimming and snorkeling.
• Rating V (20 Bar / 200 Meters): Suitable for scuba diving (excluding depths requiring helium-oxygen mixtures).

Care Instructions:

• Never attempt to open the case back or replace the gasket yourself.
• The rubber gasket, which protects the watch from water and dust, should be replaced every 2-3 years.
• If moisture enters the watch, have it checked immediately by a CASIO dealer or authorized service center.

Special Notes on Resin Bands and Fluorescent Parts

• Resin Band Care: Some resin bands may have silk-screened designs. Clean them carefully to avoid damaging these designs. A white powdery substance may appear on plastic bands; this is harmless and can be wiped off. Moisture or sweat can damage plastic bands over time; wipe them clean with a soft cloth when possible.
• Fluorescent Cases and Bands: Prolonged exposure to direct sunlight may cause the fluorescent color to fade. Prolonged contact with moisture can also cause fading. Wipe the watch dry immediately if it gets wet. Strong friction on fluorescent surfaces can transfer the color to other objects.
• CASIO Disclaimer: CASIO COMPUTER CO., LTD. is not responsible for any damage or claims arising from the use of this watch.
• Condensation: In conditions of rapid temperature change, slight condensation may form on the inside of the glass. This is a normal physical phenomenon and not a defect.

Mode Operations

Press the 'C' button to change modes. Press the 'L' button to activate the backlight in any mode.

Current Time Mode

This mode is used to set and view the time and date. The tide graph shows current water levels, and the moon phase indicator shows the current moon phase.

Important: Accurate moon phase and tide graph readings depend on correct date, time, and time zone settings.

• Display Elements: Moon Phase Indicator, Tide Graph, Day of Week, Month-Date, Hour:Minute:Second.

Setting Time and Date

1. In Current Time Mode, press and hold 'A' to make the seconds flash, indicating setting mode.
2. Press 'C' to cycle through the digits to be set: Seconds, Minutes, Hours, Day, Month, Year, 12/24-Hour Format.
3. Use 'D' (+) and 'B' (-) to adjust the flashing digits.
4. Press 'A' twice to exit setting mode. The first press enters the time zone setting, the second exits.
5. The 12/24-hour format setting applies to all modes. The day of the week is set automatically based on the date.

Your Time Zone Data

To get accurate Moon Phase and Tide Graph data, you must correctly set your time zone (difference from GMT), longitude, and lunar tide interval.

• Remember to adjust for Daylight Saving Time (add 1 hour when in effect, subtract when standard time resumes).
• The lunar tide interval is the time from the moon's transit to the peak of the high tide.
• The default settings are for Tokyo, Japan (GMT +9.0, Longitude 140° East).

Setting Your Time Zone Data

1. In Current Time Mode, press and hold 'A' until seconds flash.
2. Press 'A' again to move to the GMT difference setting.
3. Press 'C' to cycle through the digits for setting GMT difference, longitude, and lunar tide interval.
4. Use 'D' (+) and 'B' (-) to adjust the selected values.
5. Press 'A' to exit setting mode.

Moon Age Mode

This mode displays tide and moon phase data for a specific date and time in your time zone.

• Press 'A' to switch between Moon Age data and Tide Graph information.
• Moon Age Data Screen: Shows moon age and moon phase indicator.
• Tide Graph Screen: Shows tide graph and time.

Viewing Moon Data for a Specific Date: In Moon Age Mode, use 'D' (+) and 'B' (-) to set the desired date (2000-2039).

Viewing Tide Information for a Specific Time:

1. In Moon Age Mode, set the desired date using 'D' (+) and 'B' (-).
2. Press 'A' to switch to the Tide Graph screen.
3. Set the desired time using 'D' (+) and 'B' (-). Time advances in 1-hour increments.

Timer Mode

The countdown timer can be set from 1 to 60 minutes. It sounds a 10-second alarm when it reaches zero. The timer can operate with auto-repeat or countdown measurement, and can include a countdown signal.

• Setting the Timer: Set start time (1-60 min), new countdown time (1-5 min), count method (auto-repeat/countdown measurement), and countdown signal (on/off).
• Timer Operation Examples: Diagrams illustrate sequences for auto-repeat and countdown measurement with signals.
• New Countdown Time: The time for a new countdown operation, which can be started anytime during a previous operation.
• Count Methods:
  • Auto-Repeat: The timer restarts automatically when it reaches zero. Useful for races. Repeats up to 7 times.
  • Countdown Measurement: The timer counts down and then measures elapsed time.

Setting the Timer

1. In Timer Mode, press and hold 'A' until the start time flashes.
2. Press 'C' to cycle through settings: Start Time, New Countdown Time, Count Method, Signal.
3. Use 'D' (+) and 'B' (-) to adjust the flashing values.
4. Press 'A' to exit setting mode.

Alarm Mode

Set up to 5 independent alarms. Each alarm sounds for 20 seconds. One alarm has a snooze function. An hourly signal can also be activated.

• Alarm 1: Can be set as a standard alarm or with snooze function.
• Alarms 2-5: Standard daily alarms.
• Hourly Signal: Two short beeps at the start of each hour.
• Indicators: 'ALM' indicates a standard alarm is on. 'SNZ ALM' indicates the snooze alarm is on. These indicators appear in all modes when active.

Setting Alarm 1

1. In Alarm Mode, use 'D' to select Alarm 1.
2. Press 'B' to cycle through states: Standard Alarm, Snooze Alarm, Off.
3. If Snooze Alarm is selected, the 'SNZ' indicator flashes during the 5-minute snooze intervals.
4. Press and hold 'A' until the hour digits flash to set the alarm time.
5. Press 'C' to move between hour and minute digits.
6. Use 'D' (+) and 'B' (-) to adjust the time.
7. Press 'A' to exit setting mode.

Turning Alarms 2-5 On/Off

1. In Alarm Mode, use 'D' to select Alarms 2-5.
2. Press 'B' to turn them on or off. The 'ALM' indicator appears when any of these alarms are active.

How the Alarm Works

Alarms sound for 10 seconds. The snooze function repeats the alarm every 5 minutes up to 7 times. Pressing any button stops the alarm. Certain actions (e.g., entering Current Time or Alarm 1 setting mode) will cancel the snooze function.

How to Turn Hourly Signal On/Off

1. In Alarm Mode, use 'D' to select the Hourly Signal.
2. Press 'B' to turn it on or off. The 'SIG' indicator appears when it is active.

Stopwatch Mode

Measure elapsed time, split times, and record the 1st and 2nd place finishers. The stopwatch operates up to 99 hours, 59 minutes, 59.99 seconds.

• The stopwatch continues to run even if you switch to other modes.
• If the watch exits Stopwatch Mode while a split time is displayed, the split time will be replaced by the total elapsed time.

Stopwatch Operations

• Measuring Pure Time: Press 'D' to start, press 'D' again to stop, press 'B' to reset.
• Measuring Split Time: Press 'D' to start, press 'B' to split, press 'B' again to resume, press 'D' to stop, press 'B' to reset.
• Split Time and Recording 1st/2nd Place: Press 'D' to start, press 'B' to split (records 1st place), press 'B' again to resume, press 'B' again to split (records 2nd place), press 'D' to stop, press 'B' to reset.

Backlight

The watch features an electro-luminescent backlight for easy reading in the dark. The auto-backlight function illuminates the display automatically when you tilt the watch towards you.

• Auto-Backlight: The indicator 'AUTO' appears when this function is enabled.
• Manual Backlight: Pressing the 'L' button in any mode illuminates the display for 1 second, regardless of the auto-backlight setting.

Auto-Backlight Information

The auto-backlight activates for 1 second when the watch is tilted towards you at an angle of approximately 40 degrees, provided the ambient light is low. It will not activate in bright light.

• Ensure your hand is parallel to the ground and tilt the watch about 40 degrees towards you.
• The backlight may not activate if the watch face is tilted more than 15 degrees left or right.
• Static electricity or magnetic fields can interfere with auto-backlight function. If it doesn't work, try resetting the watch to its parallel-to-ground position, shake it gently, and tilt it again.
• Under certain conditions, the backlight may activate with a 1-second delay.

Caution: Do not read the watch display in the dark while climbing or in other hazardous situations, as it may lead to accidents. Do not read the watch while driving, cycling, or operating machinery, as it can be distracting and dangerous. Ensure auto-backlight is off when operating a vehicle.

Turning Auto-Backlight On/Off

In Current Time Mode, press and hold 'D' for two seconds to turn auto-backlight on (indicator appears) or off (indicator disappears).

Dual Time Mode

This mode allows you to set and display the time for a second time zone.

• The seconds count is synchronized with the Current Time Mode.

Setting Dual Time

1. Enter Dual Time Mode using 'C'.
2. Use 'A', 'B', and 'D' to set the additional time.
3. Pressing 'A' in the Dual Time display copies the Current Time to the Dual Time.
4. Pressing 'D' (+) or 'B' (-) adjusts the Dual Time in 30-minute increments.

Reference Information

Moon Phase Indicator

The moon phase indicator shows the current phase of the moon. The graph illustrates the visible portion of the moon.

• Moon Age: Displays the age of the moon in days (0 to 29).
• Moon Phase Graph: Shows the moon's appearance.

Moon Age and Phase: The moon's cycle is 29.53 days. The watch calculates moon age based on the moon's angular distance from the sun, which can result in a day's difference from the actual phase. The formula used is: Moon Age (days) = 29.53 x (angular distance to moon / 360°).

Tide Graph

The black segment on the graph indicates the current tide. Tides are periodic rises and falls of water levels caused by gravitational interactions between the Earth, Moon, and Sun.

• The tide graph displays water level changes based on the moon's position and the lunar tide interval.
• You must set the lunar tide interval for your location for accurate readings.

Lunar Tide Interval

This is the time from the moon's transit to the peak of high tide. Due to factors like viscosity and topography, the actual high tide occurs slightly later than the moon's transit. The lunar tide interval is crucial for accurate tide graph readings.

Specifications

• Accuracy: +/- 15 seconds per month at normal temperature.
• Timekeeping: Hours, minutes, seconds, AM/PM indicator, month, date, day of week.
• Time Format: 12- or 24-hour format.
• Calendar: Auto-calendar from 2000 to 2039.
• Time Zone Data: GMT difference, longitude, lunar tide interval.
• Moon Age/Phase: For a given date.
• Tide Graph: For a given date and time.
• Timer:
• Measurement Interval: 1 second.
• Range: Up to 60 minutes.
• Setting: Start time (1-60 min), New countdown time (1-5 min).
• Count Methods: Auto-repeat, Countdown measurement.
• Additional: Countdown signal.
• Alarm: 5 daily alarms (4 standard, 1 with snooze). Hourly signal.
• Stopwatch:
• Measurement Interval: 1/100 second.
• Range: 99 hours, 59 minutes, 59.99 seconds.
• Modes: Lap time, split time, records of 1st and 2nd place finishers.

Operation Auto-Return

If no button is pressed for 2-3 minutes during a setting operation, the watch will automatically save the current settings and exit the mode.

Scrolling of Readings

Buttons 'B' and 'D' are used to scroll through settings. Holding them down speeds up the scrolling.

Current Time Mode Notes

• Resetting seconds from 30-59 will increment the minute. Seconds from 00-29 will not affect the minute.
• In 12-hour format, 'P' indicates PM (noon to 11:59 PM). No indicator means AM (midnight to 11:59 AM).
• The 24-hour format displays time from 0:00 to 23:59 without an indicator.
• The year can be set from 2000 to 2039.
• The watch has a built-in auto-calendar that accounts for month lengths and leap years. Once set, it does not need frequent resetting, except after battery replacement.

Power

• Battery Type: Lithium battery CR2025.
• Approximate Battery Life: 10 years under specific conditions (e.g., alarm 10 sec/day, timer 1 op/week, backlight 1 op/day).

Product Information

• Product Name: Electronic/Electro-mechanical Quartz Wristwatch (Men's/Women's).
• Brand: CASIO.
• Manufacturer: CASIO COMPUTER Co., Ltd. (1-6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan).
• Importer (Russia): OOO "Kasio", Butyrskaya St., d. 77, Moscow, 127015.
• Warranty Period: 1 year.
• Authorized Service Organization: As specified in the warranty card.

Table of City Codes

This table lists cities with their GMT difference, longitude, and lunar tide interval for setting your watch.

Note on Daylight Saving Time: The Russian Federation abolished the transition to Daylight Saving Time in June 2011. Please consider this information when setting your watch.

The functions of modules 2572 and 2662 are similar. All illustrations are for module 2572.