Cal. 7D56A
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Technical guide
TROUBLESHOOTING
● 1. Summary of important functions characteristic of Cal. 7D56A
1) The power save function is activated after the watch is left untouched for approximately 24 hours.
2) The manual power save function is activated by pulling out the crown to the first click and pushing
it in to the normal position within one second.
3) While the second hand is moving at two-second intervals, the power save function cannot be acti
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vated either automatically or manually.
4) If the crown is pulled out to the second click while the power save function is in operation, the
time computed by the built-in IC will be canceled, thus disabling the time relay function.
5) The accuracy of the time computed by the built-in IC while the power save function is in operation
is equivalent to that of conventional quartz watches. If the power save function has been active
for a long term before the time relay function is activated, the time indicated by the hands may in-
clude a certain amount of time loss or gain that has accumulated during that time.
6) If the power reserve is depleted while the power save function is in operation, the time relay func
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tion may not be activated by swinging the watch. Instead, the second hand starts moving at two-
second intervals.
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The following are the tips on repairing Cal. 7D56A, which you will find helpful in
working on the watch.
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