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59
RECOMMENDATIONS
QUARTZ MOVEMENTS
The ambient temperature affects the precision of a quartz movement,
which will be between – 0.3 and + 0.5 second per day.
If you have a quartz watch the electrical power is sup-plied by
a battery. After 12 to 18 months of use (with the exception of
watches with lithium batteries) the voltage in the battery may drop
suddenly and cause your watch to stop. Some models have a
battery end-of-life function. The seconds hand will start to jump
every 4 seconds. If this happens we recommend that you replace
the battery immediately, because once the battery runs down totally
it may damage your watch.
Collection and treatment of end of life quartz
watches *
This symbol indicates that this product
should not be disposed with household
waste. It has to be returned to a local author-
ised collection system. By following this
procedure you will contribute to the protec-
tion of the environment and human health.
The recycling of the materials will help to conserve natural resources.
* Valid in the EU member states and in any countries with corresponding
legislation.
Replacing the battery
We recommend that you contact an approved LONGINES service centre
or authorised LONGINES retailer, as they are equipped with the tools
and apparatus required to carry out the work and the necessary
checks in a professional manner. A worn-out battery should be
replaced immediately in order to reduce the risk of leakage and
consequent damage to the movement.
Battery type
Button-type zinc-silver oxide primary battery cell.
Book_I.indb 59 13.08.19 10:56
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