Seiko 7K32 - Manual (Page 45)

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(3)Notes on battery change
For battery replacement, we recommend that you contact the retailer from whom the watch
was purchased or an authorized SEIKO dealer and request the battery for exclusive use with
the SEIKO watches.
When the battery is replaced with a new one, or when it runs down, the stored data will be erased from the memory
and the watch will return to the initial settings. Therefore, it is recommended that important data be noted down.
The following data and adjustments will be affected when the battery is replaced.
1. The minimum atmospheric pressure retained in memory will be erased.
2. The barometer adjustment made will be canceled and the barometer will return to the initial setting.
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LANDOMASTER
SUMMITER
LANDOMASTER
SUMMITER