Время жизни в лучшем случае - 11 дней
 

Потом часы встанут.

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Approximate Continuous Built-in battery Operating Time
" Timekeeping Only: 7 to 11 days
" Continuous GPS Measurement: NORMAL: 2.0 hours
LOW POWER: 4.3 hours
" Actual built-in battery operating time depends on operating conditions.
" Repeated charging and discharging shortens built-in battery operating
time.

Сами часы