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16. Specifications
1. Model: E87*
2. Type: Analog solar-powered watch
3. Timekeeping accuracy: Within ±15 seconds per month on average (when worn at
normal temperatures of +5°C to +35°C/41°F to 95°F)
4. Operating temperature range: -10°C to +60°C/14°F to 140°F
5. Display functions:
• Time: 24 hour display, hours, minutes, seconds
• Date: Date display by a date wheel (with continuous advance function)
Month display by second hand
Day display by function hand
Year display by function hand (elapsed years from leap
year)/display only while button (B) is pressed in the calendar
mode)
6. Additional functions:
• Perpetual calendar (elapsed years from leap year, month, date and day
are switched automatically until February 28, 2100 (including leap
years))
• Power save feature
• Insufficient charge warning feature
• Over charge prevention feature
• Daily alarm (24 hour clock, alarm monitor, alarm ON/OFF)
• Local time (time different correction: 1 hour units)
7. Continuous Operating Times
• Time until watch stops without charging after being fully charged:
: Approx. 1.5 years (with the power save feature operating
continuously)
: Approx. 7 months (when the power save feature is not
operating)
• Insufficient charge warning display (2-second interval movement) to
stopped: Approx. 3 days
8. Battery: Secondary battery, 1
* Specifications are subject to change without notice.