Casio User's Guide 5641

Contents

• Using the Watch
• Navigating Between Modes
• Setting the Time
• Specifications

Using the Watch

Note: Digital display examples in this manual show dark figures on a light background. Actual displays may vary.

Navigating Between Modes

Pressing the D button cycles through the modes as shown below. To return directly to the Timekeeping Mode from any other mode, hold down D for at least two seconds.

Mode Diagram:

Timekeeping Mode (A) ↔ Alarm Mode (B) ↔ Dual Time Mode (C) ↔ Stopwatch Mode (D) ↔ Timer Mode (E) ↔ Recall Mode (F)

(Diagram showing the circular navigation between Timekeeping, Alarm, Dual Time, Stopwatch, Timer, and Recall modes, with buttons A, B, C, D indicated for transitions.)

Stopwatch Mode

Functions: Start, Stop, Lap/split toggle (A), Reset (D), Distance/pace toggle (B).

(Diagram showing the Stopwatch interface with Start/Stop, Lap/Split, Reset, and Distance/Pace buttons.)

Measurement unit: 1/100 seconds (first hour); 1 second (after first hour). Measurement range: 23 hours, 59 minutes, 59 seconds.

Recall Mode

Functions: Lap record scrolling, Total time, Total distance, Measurement start time.

(Diagram showing the Recall Mode interface with lap records, total time, and total distance.)

Timer Mode

Functions: Start, Stop, Timer number scrolling (B), Auto Start on/off (A).

(Diagram showing the Timer Mode interface with Start/Stop, Timer number, and Auto Start controls.)

Countdown Timer: Unit: 1 second. Range: 60 minutes. Number of intervals: 1 to 5. Number of auto repeats: 1 to 20.

Setting the Time

1. In the Timekeeping Mode, hold down A for at least two seconds.
2. Hold down A until SET stops flashing and the seconds count starts flashing.
3. Press D to reset the seconds count to 00. (Seconds are synced with the current time.)
4. Press C to move the flashing to the hour setting.
5. Use D and B to change the hour setting.
6. Press C to move the flashing to the minute setting.
7. Use D and B to change the minute setting.
8. Press C twice to move the flashing to the year setting.
9. Use D and B to change the year setting.
10. Press C to move the flashing to the month setting.
11. Use D and B to change the month setting.
12. Press C to move the flashing to the day setting.
13. Use D and B to change the day setting.
14. After all settings are correct, press A twice to exit.

Specifications

• Accuracy at Normal Temperature: ±15 seconds a month (when time adjustment by phone communication is not possible).
• Analog Timekeeping: Hour, minute (moves every 20 seconds).
• Digital Timekeeping: Hour, minute, second, month, day, day of the week, a.m./p.m. (P)/24-hour timekeeping, Full Auto Calendar (2000-2099), Summer Time.
• Life Log Measurements:
  • Distance: Measurement range: 0 to 9999.99 km. Target Distance Setting: 1 to 199 km (in 1 km units).
  • Calories: Measurement range: 0 to 999,999 kcal. Target Calories Setting: 10 to 60,000 kcal (in 10 kcal units).
  • Step Count: Measured using a 3-axis accelerometer. Measurement range: 0 to 999,999 steps. Target Step Count Setting: 1,000 to 99,900 steps (in 100 steps units). Accuracy: ±3%.
  • Power Saving
  • Life Log Reset: Auto reset at midnight; manual reset.
  • Life Log Graph
  • Exercise Intensity Display
• Stopwatch/Data Recall:
  • Measurement unit: 1/100 seconds (first hour); 1 second (after first hour).
  • Measurement range: 23 hours, 59 minutes, 59 seconds.
  • Measurement functions: Elapsed time, cumulative time, lap/split times, distance/pace display, auto/manual lap measurement, auto lap alert, 45-record data memory.
• Countdown Timer:
  • Unit: 1 second. Range: 60 minutes.
  • Time setting unit: 1 second. Time setting range: 1 second to 60 minutes.
  • Alerts: Beep every second for final 5 seconds, alert beeper at the end of countdown.
  • Auto Start
• Dual Time: Hour, minute, second. Swapping with Home Time.
• Alarms: 5 Daily alarms; Hourly time signal. Setting units: Hour, minute. Alarm tone duration: 10 seconds.
• Mobile Link:
  • Function linking with a Bluetooth® device using wireless communication.
  • Operation Enhanced by Mobile Link: Auto Time Adjustment, Simple time setting, World Time (300 cities, 38 time zones, auto summer time switching), UTC time, Watch setting configuration, Phone Finder, Distance Calibration, Life Log Data Manager (distance, calories, step count), Training log data management (lap times, distance, pace, total calories burned), Simple Notification (Audible Alert Only), Phone Notification Linking, Auto summer time switching.
• Data Communication Specifications:
  • Bluetooth®: Frequency band: 2400 MHz to 2480 MHz. Maximum transmission: 0 dBm (1 mW). Communication range: 2 meters max. (depends on environment).
• Others: LED backlight (Auto Light, Super Illuminator, 1.5/3-second illumination duration); operation tone on/off; Airplane Mode; user profile creation; hand shift feature; low battery alert.
• Power Supply: One lithium battery (CR2025).
• Battery life: Approximately 2 years (under specified usage conditions: Bluetooth connection 10 hrs/day, Alarm once (10 sec)/day, Illumination once (1.5 sec)/day, Display 24 hrs/day, Life Log Measurement 12 hrs/day, Stopwatch Measurement 3 hrs/week, Notification 20 times/day).

Specifications are subject to change without notice.