Seiko Group V157 User Manual

15

English

English

14

l  

The battery used in this watch is a rechargeable battery, which is different 

from ordinary silver oxide batteries. Unlike other disposable batteries such as 

dry-cell batteries or button cells, this rechargeable battery can be used over 

and over again by repeating the cycles of discharging and recharging.

l  

The capacit y or recharging ef ficiency of the rechargeable bat ter y may 

gradually deteriorate for various reasons such as long-term use or usage 

conditions. Worn or contaminated mechanical parts or degraded oils may 

also shorten recharging cycles. If the efficiency of the rechargeable battery 

decreases, it is necessary to have the watch repaired.

●

  Do not remove the rechargeable battery yourself. Replacement of the 

rechargeable battery requires professional knowledge and skill. Please 

ask a watch retailer for replacement of the rechargeable battery. 

●

  Installation of an ordinary silver oxide battery can generate heat that can 

cause bursting and ignition. 

l

  To unscrew the crown:

 

Turn the crown counterclockwise.  (Then, pull it out for time/calendar setting)

l

  To screw in the crown:

 

With the crown at the normal position, turn it clockwise while pressing it.