The Following Functions Are Included - Seiko Astron 5X53 Complete User Manual

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READ FIRST
When the region or time zone where the watch is used is changed
Adjust the time zone.
The watch displays the precise local time where you are (which includes DST (Daylight
Saving Time)).
→ Time zone adjustment P. 19
→ Time zone P. 6
→ Time zone display and list of time zones around the world
Los Angeles
7:00 PM on 6th

The following functions are included

To set only the time
The watch displays the precise time of the time zone that is set by operation of "manual
time adjustment."
→ How to manually adjust the time
→ Check the time zone and DST (Daylight Saving Time) settings
P. 12
London
3:00 AM on 7th
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ASTRON 5X53 GPS SOLAR
P. 22
P. 25