21. Specifications
1. Caliber No.: C650 / C651 / C652
2. Type: Combination solar-powered watch
3. Accuracy: Within ±15 seconds per month (when worn at normal
temperatures of +5°C to +35°C / 41°F to 95°F)
4. Operating Temperature Range:
Watch operating temperature range: 0°C to +55°C (32°F to 131°F)
5. Display Functions:
Analog • Time: Seconds, minutes, hours, 24 hours, UTC minutes, UTC
hours, mode
Digital • Time: Seconds, minutes, hours, city name, daylight savings time,
A/P
• Calendar: Month, date, day, city name
• Alarm 1: Hours, minutes, A/P, city name, ON/OFF
• Alarm 2: Hours, minutes, A/P, city name, ON/OFF
• Alarm 3: Hours, minutes, A/P, city name, ON/OFF
• Chronograph: Chronograph hours, chronograph minutes,
chronograph seconds, chronograph 1/100 seconds, SPL, 24
hour measurement
• Timer: Timer remaining minutes, timer remaining seconds, set
minutes (timer setting range: 99 minutes to 1 minute in 1
minute units)
• Zone setting: Display setting and cancellation for each city,
setting of ON/OF for daylight savings time for each
city
6. Additional Functions
• Switching between main time (analog) and sub-time (digital)
• Power Save 1: Automatically stops second hand movement and digital
display.
• Power Save 2: Automatically stops watch functions
• Manual Power Save: Enables watch functions to be stopped arbitrarily
(forcibly)
• Power indicator: Approximate indication of secondary battery charging level
• Insufficient charging warning function
• Time setting warning function (CAL No. C650 only)
• Overcharging prevention function
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