Seiko 7B72 - Time Difference Adjustment Function (When Using Overseas); Time Difference Adjustment Function Characteristics; Setting the Time Difference (Radio Signal Transmitting Station); List of Time Zone Differences

Time difference adjustment function (When using overseas)
■ Time difference adjustment function characteristics
•
Set the time difference in the time difference adjustment mode
to display an overseas local time.
The watch can display an overseas local time in one-hour units.
The time difference is set based on UTC (Coordinated
Universal Time).
The range of time differences around the world based on UTC
is [from -11 hours to +13 hours].
•
In the time difference adjustment mode, the time difference
based on UTC (Coordinated Universal Time) is displayed by
the position of the seconds hand.
To set the time difference, turn the crown to move the seconds
hand to the correct position.
•
A radio signal transmitting station is selected by setting the
time difference.
When setting the time difference for a region other than the
radio signal reception ranges, the radio signal reception
function will not work.
Examples
:
When using the watch in Japan, set the seconds
hand to the [9-second position: Tokyo] to receive a
radio signal from Japan.
When using the watch in China, set the seconds
hand to the [8-second position: Beijing].
“Setting the time difference (Setting the radio signal
transmitting station)” → P.29
“List of time zone differences in major regions of the world” → P.31
<How to read the seconds hand position and time
difference (Radio signal transmitting station)>
* The numbers in parenthesis are time differences based on UTC.
1
8
9
53
-11
13
0-second position: UTC
London (±0):
MSF
Denver (-7):
WWVB
Berlin (+1):
DCF77
Beijing (+8):
BPC
Tokyo (+9):
JJY
EN
28
4
TIME DIFFERENCE ADJUSTMENT FUNCTION
Setting the time difference (Setting the radio signal
transmitting station)
01 2
Pull the
crown to the
first click
Turn the crown clockwise to
advance the time difference.
Turn the crown counterclockwise
to set back the time difference.
1
Pull the crown to the first click.
The watch switches to the time difference adjustment
mode, and the seconds hand moves to the currently-set
time difference.
2
Turn the crown to set the seconds hand to
the time difference of the target area.
Turn the crown to move the seconds hand, and the hour
and minute hands will move accordingly.
One-second movement of the hand indicates the time
difference has changed by one hour.
The position of the seconds hand shows the difference.
Please set it by referring to P.31.
The hour and minute hands show the time in the location
of the set time difference.
*
The seconds hand can also be moved while the hour and
minute hands are moving.
EN
29
4
TIME DIFFERENCE ADJUSTMENT FUNCTION
The radio signal transmitting station can be changed by setting the time difference. When
setting a time difference for regions other than the radio signal reception ranges, the
radio signal reception function will not work.
* When setting the Daylight Saving Time (DST), add one hour to the time difference of the target area.
In Japan In China In the other countries
Set to the 9-second
position
Set to the 8-second
position
“List of time zone
differences in major
regions of the world”
→ P.31
* When the seconds hand is at 13 seconds (UTC +13 hours), turn the crown clockwise to move to the 49-second position
(UTC -11 hours).
* When the seconds hand is at 49 seconds (UTC -11 hours), turn the crown counterclockwise to move to the 13-second
position (UTC +13 hours).
3
Push the crown back in.
The seconds hand returns to normal one-second interval movement.
* When the date is changed, it is also moved.
EN
30
4
TIME DIFFERENCE ADJUSTMENT FUNCTION
List of time zone differences in major regions of the world
Refer to the table below to set the time difference area in the Time Difference Adjustment mode.
* When setting a time difference for a region where no receivable official standard frequency is mentioned in the
table below, the radio signal reception function will not work.
(As of August 2020)
Time difference
setting
seconds hand
position
Time
difference
from UTC
Time zone
representative
city
Reception
frequency
0 seconds ±0 hours London MSF/DCF77
1 second +1 hour Paris / Berlin MSF/DCF77
2 seconds +2 hours Cairo MSF/DCF77
3 seconds +3 hours Jeddah DCF77
4 seconds +4 hours Dubai DCF77 △
5 seconds +5 hours Karachi -
6 seconds +6 hours Dhaka -
7 seconds +7 hours Bangkok -
8 seconds +8 hours Beijing BPC
9 seconds +9 hours Tokyo JJY
10 seconds +10 hours Sydney JJY △
11 seconds +11 hours Noumea -
12 seconds +12 hours Wellington -
13 seconds +13 hours
Nuku’alofa
(Tongatapu)
-
Time difference
setting
seconds hand
position
Time
difference
from UTC
Time zone
representative
city
Reception
frequency
49 seconds -11 hours Midway Island -
50 seconds -10 hours Honolulu -
51 seconds -9 hours Anchorage -
52 seconds -8 hours Los Angeles WWVB
53 seconds -7 hours Denver WWVB
54 seconds -6 hours Chicago WWVB
55 seconds -5 hours New York WWVB
56 seconds -4 hours Santo Domingo WWVB △
57 seconds -3 hours Rio de Janeiro -
58 seconds -2 hours
Fernando de
Noronha
-
59 seconds -1 hour Azores Islands -
To use Daylight Saving Time (DST) where this is observed, select the time zones with a △ mark in the Reception
frequency columns.
EN
31
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TIME DIFFERENCE ADJUSTMENT FUNCTION