Cal. 7R68
INSTRUCTIONS
(P.
3)
BEDIENUNGSANLEITUNG
INSTRUCTIONS
ISTRUZIONI
(S. 12)
(P. 21)
(P. 30)
(P. 39)
(P. 48)
(57 頁)
INSTRUCCIONES
INSTRUÇÕES
用法説明
CONTENTS
Page
DISPLAY AND CROWN OPERATION ......................................................................
HOW TO WIND THE WATCH ..................................................................................
TIME/DATE SETTING...............................................................................................
6
7
8
NOTES ON USING THE WATCH ............................................................................. 10
SPECIFICATIONS..................................................................................................... 11
✩ For the care of your watch, see “TO PRESERVE THE QUALITY OF YOUR
WATCH” in the attached Worldwide Guarantee and Instruction Booklet.
3
CAL. 7R68 “SPRING DRIVE”
Until now, quartz and mechanical watches existed as two distinct entities.
Driven by a mainspring, this watch delivers the accuracy of a traditional quartz watch
thanks to the use of the Spring Drive Mechanism newly developed by SEIKO.
SPRING DRIVE MECHANISM
✩ Like a traditional mechanical watch, the mainspring drives the watch. What is new
is that it also runs a generator which in turn oscillates a quartz crystal. This regulates
the movement of the hands as accurately as a traditional quartz watch.
SWEEP-MOVEMENT SECOND HAND
✩ The second hand moves smoothly without steps.
POWER RESERVE INDICATOR
✩ It shows the extent to which the mainspring is wound.
UP TO 48 HOURS OF CONTINUOUS OPERATION
✩ When the watch is wound fully, it keeps operating for approximately 48 hours.
4
CAUTION
✩ This watch is driven by a mainspring. To ensure constant operation of the
watch, be sure to wind it completely before the power reserve indicator points
to “0”.
✩ If the watch is used in temperatures below 0° C with the power reserve indicator
pointing to “1/4” or less, it may stop operating. Therefore, when using the
watch in temperatures below 0° C, make sure the watch has sufficient power
reserve.
5
DISPLAY AND CROWN OPERATION
Power reserve indicator
Minute hand
Hour hand
a
b
c
CROWN
Second hand
Date
a: Normal position ...... Winding the watch by turning clockwise
b: First click ................. Date setting
c: Second click .......... Time setting
6
HOW TO WIND THE WATCH
✩ Before using, be sure to wind the watch completely by turning the crown.
CROWN
Power reserve
indicator
Turn slowly clockwise in the nor-
mal position to wind the main-
spring.
✩
Turn further until the power re-
serve indicator points to “1”.
CAUTION
✩ When the power reserve indicator reaches “1”, the crown becomes difficult to
turn. Do not attempt to turn the crown forcibly. Otherwise, a malfunction will
be caused.
7
TIME/DATE SETTING
✩ Before setting the time and date, wind the watch completely (as described on the
previous page), and check that the watch is in operation.
CROWN
Pull out to the first click.
✩
✩
Turn counterclockwise until the
previous day’s date appears.
✩
Pull out to the second click when
the second hand is at the 12 o’clock
position.
✩
Turn counterclockwise to advance
the hands until the date changes to
the next.
✩
✩
✩
Turn further to set the time.
✩
Push back in to the normal posi-
tion.
8
✩ Date adjustment at the beginning of the month
The watch indicates dates from “1” to “31”. In March and months following 30-day
months, you will need to make the following adjustment:
CROWN
Pull out to the first click.
✩
Turn counterclockwise until “1”
appears in the calendar frame.
✩
Push back in to the normal posi-
tion.
9
NOTES ON USING THE WATCH
HOW TO WIND THE WATCH
✩ Wind clockwise. The watch is so designed that the mainspring will not be wound by turning the crown
counterclockwise.
TIME/DATE SETTING
✩ Date setting (also for “✩ Date adjustment at the beginning of the month”)
Do not set the date between 9:00 p.m. and 1:00 a.m. as the date may not change properly. If it is
necessary to adjust the date during that time period, first pull out the crown to the second click, turn
it counterclockwise until the hands advance past 1:00 a.m., and then, push it back to the first click to
set the desired date.
✩ Time setting
*
When setting the hour hand, check that AM/PM is properly set. The watch is so designed that the
date changes once every 24 hours.
*
The mechanism of this watch is different from that of a conventional quartz watch. To set the time,
therefore, first set the hands to a time a few minutes behind the desired time, and then, advance
the hands to the exact time. If the hands turn past the desired time, repeat this procedure again.
[Tips for setting the time accurately]
Your watch is equipped with a newly-developed spring drive mechanism. To set the time accurately,
please observe the following.
1. Before setting the time, wind the mainspring fully until the power reserve indicator points to “1”.
If the watch has stopped completely before it is wound up, wind the mainspring fully, allowing the
watch to operate for at least 30 seconds, and then set the time.
2. Do not leave the second hand stopped for more than 30 minutes by keeping the crown at the
second click. If this should happen, push the crown back in to the normal position, allowing the
watch to operate for at least 30 seconds, and then set the time.
10
SPECIFICATIONS
1
Main functions ........................................ 3 hands (hour, minute and second hands), calendar, and
power reserve indicator
2
3
Frequency of crystal oscillator ................ 32,768 Hz (Hz = Hertz … Cycles per second)
Loss/gain (monthly rate) .......................... Less than 15 seconds at normal temperature range (5° C ~
35° C) (41° F ~ 95° F) (Corresponding to a daily rate of less
than 1 second)
4
Operational temperature range ............... –10° C ~ +60° C (14° F ~ 140° F)
* When using the watch in low temperatures, keep the
power reserve indicator above “1/4”.
5
6
7
Driving system ........................................ Manual winding mechanism
Hand movement system ........................ Sweep-movement second hand
Duration of operation .............................. Approx. 48 hours. (If the watch is fully wound with the
power reserve indicator pointing to “1”)
8
9
IC (Integrated Circuit) .............................. Oscillator, frequency divider and spring drive control circuit
(C-MOS-IC), 1 piece
Jewels ..................................................... 30 jewels
* The specifications are subject to change without prior notice for product improvement.
11
|