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16. Specifications
1. Model: E21*
2. Type: Analog solar-powered watch
3. Timekeeping accuracy: Within ±15 seconds per month on average (when worn at normal
temperatures of +5ºC to +35ºC/41ºF to 95ºF)
4. Crystal oscillator frequency: 32,768 Hz
5. Operating temperature range: Watch operating temperature range:
-10ºC to +60ºC/14ºF to 140ºF
Chronograph operating temperature range:
0ºC to +60ºC/32ºF to 140ºF
6. Display functions: • Time: Hours, minutes, seconds
• Date: Date (with rapid correction feature)
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7. Additional functions: • Chronograph (timing for up to 12 hours in 1/5 second units)
• Alarm (12-hour clock indicator hand)
Duration of alarm sounding: 20 seconds
Alarm set time accuracy: ± 5 minutes
• Charge level indicator (4-level, fan-shaped indicator)
• Insufficient charge warning feature (2-second interval
movement)
• Over charge prevention feature
8. Continuous Operating Times:
• Time until watch stops without charging after being fully charged: Approx. 8 months
(continuous operating time varies depending on the frequency at which the alarm,
chronograph and other functions are used)
• Time from 2-second interval movement to stopped: Approx. 7 days
9. Battery: Secondary battery, 1
* Specifications are subject to change without notice.
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