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Specifications
Model
F990
Type
Analog solar-powered watch
Timekeeping
accuracy
(without reception)
Average monthly accuracy: ±5 seconds when worn at normal
operation temperatures between +5°C (41°F) and +35°C (95°F)
Operating
temperature range
‒10°C (14°F) to +60°C (140°F)
Display functions
• Time: Hours, minutes, seconds
• Calendar: Date, day of week
• Dual time: Hour, minute
• Power reserve: 5 levels
• Power generation amount: 7
levels
Maximum run time
from full charge
• When fully charged, the watch runs without additional charging
in normal use: Approximately 1.5 years (When saving power:
Approximately 5 years)
• Power reserve upon insufficient charge warning function:
Approximately 5 days
Battery
Rechargeable cell (lithium button cell), 1pc.
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