Citizen 0950, Instruction Manual

Page: 20 / 38

19
About mechanical watches
The accuracy of a mechanical watch in this instruction manual is static accuracy
at normal temperatures. Accuracy of a mechanical watch may not be kept within a
normal accuracy range due to using conditions such as below.
Winding amount
of the mainspring
A mechanical watch keeps its accuracy best when its mainspring is
sufficiently wound.
Posture of the
watch
Accuracy of a mechanical watch varies affected by gravity. The
accuracy varies as the result that the watch may take various attitude
while worn and gravitate to a different direction every moment.
Temperature
Metal parts are used for the part for keeping accuracy in a
mechanical watch. The accuracy varies affected by their thermal
expansion and contraction and change of characteristics as a spring.
Magnetism
Metal parts are used in a mechanical watch. Magnetism affects them
and accuracy of the watch in consequence. Do not bring it close to
things which have or generate strong magnetism.
Impact and others
Strong shocks and continuous vibration may also affect the accuracy.
Continued on the next page