LORUS RWF Series User manual

Selection of the mode is made by turning the
crown at normal position clockwise or counter-
clockwise as follows:
■ADJUSTING THE HAND POSITION
Before setting the time, date and alarm, be sure to
use the “→Ø ←” mode to put all the hands other
than the dual time hand in the 12 o’clock position.
• Turn the crown to set the mode indicator to
“→Ø←”.
If the hands do not return to the 12 o’clock
position, reset them to the 12 o’clock position,
following the procedure below.
INSTRUCTIONS
for
Cal. N945
■CHARACTERISTICS
1. Time: Indicated by the hour, minute and 24-
hour hands.
2. Date: Indicated by the date indicator (tail of
the center hand).
3. Alarm: The alarm is set on a 24-hour basis and
rings at the designated time for 15 seconds.
4. Stopwatch: It can measure up to 12 hours in
1/10 seconds.
5. Timer: Up to 60 minutes can be set in one-
minute increments.
6. Dual time: The time of a different time zone
can be displayed on a 24-hour basis with the
dual time hand.
7. Tachymeter: Some models are provided with
a tachymeter with a graduated dial.
Stopwatch
1/10 second hand
Stopwatch/timer
second hand
(tip of the center hand)
Hour hand
24-hour hand
Date numerals
Date indicator
(tail of the center hand)
Minute hand
Normal position
First click
Second click
Crown
Dual time hand
Mode indicator
A B
TIME mode
(Alarm disengaged)
TIME mode
(Alarm engaged)
ALARM mode
“→Ø ←” mode
TIMER mode
STOPWATCH mode
Mode indicator
Second click
Crown
First click
A B
Hour hand
24-hour hand
Minute hand
Second click
Crown
Mode indicator
A B
■HOW TO SET THE TIME
• Turn the crown to set the mode indicator to
“TIME” or “TIME ”.
1. Pull out the crown to the second click.
The minute hand may stop on the spot or advance
to the next minute marker and stop.
2. Depress button “A” or “B” to set the hour,
minute and 24-hour hands to the desired time.
The time can be set in one-minute increments.
* For both buttons, the hands advance quickly
if the respective buttons are kept depressed.
3. Push the crown back in to the normal position
in accordance with a time signal.
Notes:
1. When setting the hour hand, check that the 24-
hour hand is set properly.
2. As the hour and minute hands move, the 24-
hour hand also moves correspondingly.
3. When the 24-hour hand turns clockwise or counter-
clockwise past “0” position, the date indicator
advances or moves back, respectively.
Date indicator
First click
Crown
Date numerals
Mode indicator
A B
■HOW TO SET THE DATE
The date is indicated by the date indicator (tail of
the center hand).
• Turn the crown to set the mode indicator to
“TIME” or “TIME ”.
1. Pull out the crown to the first click.
2. Depress button “A” or “B” to set the desired
date.
* For both buttons, the date indicator moves
quickly if the respective buttons are kept
depressed.
3. Push the crown back in to the normal position.
Notes:
1. While the crown is kept at the first click, the
hour, minute and 24-hour hands stop moving,
and when the crown is pushed in, the hands
move to indicate the current time properly.
2. If the date has changed to the next while date
setting is being made, the hour and minute
hands will turn past the 12 o’clock marker as
soon as the crown is pushed in, but the date
indicator will not advance to the next.
1. Pull out the crown to the first click.
* If the stopwatch or timer is counting, it will
automatically be reset.
2. Depress button “A” or “B” to reset the stop-
watch 1/10 second hand and the tip of the
center hand to the 12 o’clock position.
* The stopwatch 1/10 second hand and the center
hand move correspondingly and cannot be
set independently.
* For both buttons, the hands move quickly if
the respective buttons are kept depressed.
3. Pull out the crown to the second click.
4. Depress button “A” or “B” to reset the hour
and minute hands to the 12 o’clock position
and the 24-hour hand to “0” position.
* As the minute hand moves, the hour and 24-
hour hands move correspondingly.
* When finally putting the minute hand to the
12 o’clock position, be sure to turn it clockwise
by depressing button “A”.
* For both buttons, the hands move quickly if
the respective buttons are kept depressed.
5. Push the crown back in to the normal position.
■DISPLAY, MODES, AND CROWN &
BUTTON OPERATION

■HOW TO SET THE DUAL TIME
• Turn the crown to set the mode indicator to
“TIME” or “TIME ”.
Minute hand
First click
Crown
Dual time hand
Mode indicator
A B
1. Pull out the crown to the first click.
2. Turn the crown clockwise or counterclockwise
to set the dual time hand to the time of the
desired time zone.
* When setting the dual time hand, first advance
it one hour ahead of the desired time and
then turn it back to the exact hour.
3. Push the crown back in to the normal position.
Notes:
1. The minute hand also serves to indicate the
minutes of the dual time.
2. When setting the dual time with the crown at
the first click, do not depress button“A” or “B”
as the date indicator will move.
3. When turning the crown to set the dual time
hand, the hour and minute hands may move
slightly. However, this will not affect time
accuracy.
4. While the crown is kept at the first click, the
hour, minute and 24-hour hands stop moving,
and when the crown is pushed in, the hands
automatically move to indicate the current time
properly.
24-hour hand
Hour hand
Minute hand
Second click
Crown
Mode indicator
A B
■HOW TO USE THE ALARM
Alarm setting
• Turn the crown to set the mode indicator to
“ SET”.
1. Pull out the crown to the second click.
2. Depress button “A” or “B” to set the hour,
minute and 24-hour hands to the desired alarm
time.
* For both buttons, the hands move quickly if
the respective buttons are kept depressed.
3. Push the crown back in to the normal position.
Notes:
1. When setting the hour hand, check that the 24-
hour hand is set properly.
2. As the alarm hands move, the dual time hand
moves correspondingly, retaining the time difference
between the current time and dual time. Therefore,
the alarm can also be set on the basis of the
dual time display by turning the alarm hands to
set the dual time hand to the desired alarm
time.
3. While the alarm hands are moving to indicate
the alarm time previously set, do not depress
any one of the buttons as the hands will stop
moving and the alarm will be set to the time
that the hands indicate.
Alarm engagement/disengagement
• To engage the alarm, turn the crown to set the
mode indicator to “TIME ”.
* The alarm rings at the designated time for 15
seconds. To stop it manually, depress button
“A” or “B”, or turn the crown to change the
mode over to another.
* The alarm can be tested by keeping both
buttons “A” and “B” depressed at the same
time with the mode indicator at “TIME ”.
• To disengage the alarm, turn the crown to set
the mode indicator to any mode other than “TIME ”.
■HOW TO USE THE TIMER
Timer setting
• Turn the crown to set the mode indicator to
“TIMER”.
Second click
Timer second hand
Timer minute hand
1/10 second hand
Crown
Mode indicator
A B
1. Pull out the crown to the second click.
The timer minute hand indicates the time previously
set.
2. Depress button “A” or “B” to set the desired
amount of time.
* For both buttons, the hand moves quickly if
the respective buttons are kept depressed.
3. Push the crown back in to the normal position.
Notes:
1. If “0” minutes are set for the timer, it will not
start.
2. Once the timer is set, the set time can be used
repeatedly unless it is newly set.
Timer operation
• While in the “TIMER” mode, depress button
“B” to register the time previously set.
• After the timer is set newly, it is not necessary
to follow the above step.
Depress the buttons in the following order.
A A A Time-up
Start Stop Restart Warning
beep sounds
Restart and stop of the timer
can be repeated by depressing
button “A”.
* If button “B” is depressed after the set time is up
or while the timer is stopped, the timer is reset
to the set time again.
• When 6 minutes or more are set for the timer,
the 1/10 second hand moves back and forth
every second while the second hand stops at “0”
position.
• When the remaining time is 5 minutes or less,
the 1/10 second hand turns a full circle every
second, and the second hand turns counter-
clockwise at one-second intervals.
[Swing movement of the 1/10 second hand]
Notes:
1. When the remaining time is 3, 2 and 1 second,
a warning beep sounds, and when the set time
is up, it beeps for 2 seconds.
2. Even if the mode is changed from “TIMER” to
another, the timer continues counting and the
warning beep sounds in the manner described
above.
3. While the timer is used, the dual time hand
moves correspondingly with the hour hand but
does not indicate the remaining time.

■HOW TO USE THE STOPWATCH
• Turn the crown to set the mode indicator to
“CHRONO.”.
The hour, minute, stopwatch second and stopwatch
1/10 second hands return to “0” position, and
the stopwatch 12-hour hand returns to “0” or
“12” depending on which position it started from.
Stopwatch 1/10 second hand
Stopwatch second hand
Stopwatch 12-hour hand
Hour hand
Minute hand
Crown
Mode indicator
A B
* The stopwatch can measure up to 12 hours in
1/10 seconds.
* Even if the mode is changed from “CHRONO.”
to another while the stopwatch is measuring,
it continues counting. However, if “→Ø←”
mode is selected and the crown is pulled out,
the measurement is canceled and the hands
will be reset to “0” position, and when the
split time is measured, it will be released by
changing the mode.
• Before using the stopwatch, be sure to reset the
stopwatch 12-hour hand to “0” or “12” position
and the other hands to “0” position.
When the stopwatch is measuring, depress button
“A” to stop the measurement and then depress
button“B” once.
AAB
Start Stop Reset
Split time measurement
ABB AB
Start Split Split Stop Reset
release
Measurement between
two competitors
Finish (First runner)
Finish (Second runner)
ABA BB
Start Split Stop Split Reset
release
Accumulated elapsed time
measurement
Can repeat by de-
pressing button “B”.
[Movement of the hands during
measurement]
When more than 10 minutes have elapsed after
the stopwatch is started, the second hand stops at
“0” position, and the 1/10 second hand moves
back and forth every second starting from “0”
position, to indicate that the stopwatch is measuring.
* In that case, the hands will indicate the measured
time immediately if the split time is measured
or the stopwatch is stopped.
• Even when more than 10 minutes have elapsed,
the 1/10 second hand and second hand are moving
normally to show the elapsed time in the following
cases.
•When the mode is changed from another to
the stopwatch mode.
•When split time is released or measurement is
restarted. In each case, the hands move normally
for approximately 10 minutes.
• While the timer warning sound beeps, the stop-
watch hands stop moving. However, the stop-
watch continues correct measurement. Split
time measurement and stop of the stopwatch
are also possible.
• While the hands are moving automatically in
the following cases, the stopwatch button operation
can be made correctly.
•After the stopwatch is reset;
•After the mode is changed over to the stopwatch
mode from another; and
•After the split time is released.
• When measurement exceeds 12 hours, the hands
stop at “0” position. If the split time is being
measured and the measurement exceeds 12 hours,
the hands will be reset to “0” position.
■HOW TO USE THE TACHYMETER
(For the models with tachymeter scale)
• Use the tachymeter with the stopwatch.
STOPWATCH mode
Stopwatch operation (Standard measurement)
To start : Press “A”.
To stop : Press “A”.
To reset : Press “B”.
To measure the hourly average speed of a
vehicle
• Use the stopwatch to determine how many seconds
it takes to go one kilometer (or one mile). The
tachymeter scale indicated by the stopwatch
second hand gives the average speed per hour.
Ex. 1)
If it takes 40 seconds to go one kilometer (or one
mile), the stopwatch second hand indicates “90”
on the tachymeter scale. This means that the
average speed of the vehicle is 90 kilometers (or
miles) per hour.
Ex. 2)
If the measuring distance is extended to 2 kilometers
(or miles) or shortened to 0.5 kilometers (miles),
multiply the figure on the tachymeter scale by 2
or 0.5, respectively.
Note: The tachymeter is also useful in calculating
machine production amount per hour in a
factory.
A B
Standard measurement
AAA AB
Start Stop Restart Stop Reset
Accumulate repeatedly by
depressing button “A”.

■NECESSARY PROCEDURE AFTER
BATTERY CHANGE
• After the battery is changed with a new one or
in case any one of the hands should move improperly,
follow the procedure below to reset the circuit
of the built-in IC.
1. Turn the crown to set the mode indicator to
“TIME”.
2. While depressing buttons “A” and “B” at the
same time, turn the crown to set the mode
indicator to “TIME ” or “CHRONO.”. The
circuit of the built-in IC will be reset.
Note: Before using the watch, be sure to adjust
the hand position in the “→Ø←” mode,
and then set the time, date and alarm.
(See “ADJUSTING THE HAND POSITION”,
“HOW TO SET THE TIME”, “HOW TO
SET THE DATE” and “HOW TO USE THE
ALARM”.)
• ANTI-MAGNETIC
Your watch will not be affected by magnetism
generated by household electric appliances.
• ANTI-SHOCK
Your watch may be worn for normal sports
activities, but be careful not to drop it or hit it
on hard surfaces.
• TEMPERATURE
Your watch is preadjusted that constant accuracy
may be insured at normal temperature.
2. Service:
If your LORUS watch requires repair or servic-
ing, send it to the Authorized Lorus Service
Center below:
COSERV
P.O. Box 677
Mahwah, NJ 07430
For local repair service in California, please
consult the Yellow Pages of your local telephone
directory.
When you send your Lorus watch for service
under warranty to the address above, please
enclose a $4.00 check or money order (payable
to COSERV) to cover the cost of handling.
• Because of possible loss, we recommend in-
suring your watch when using the mails.
Never include a special watchband or gift
box in your shipment.
• As a convenience in obtaining service at the
Authorized Lorus Service Center listed above,
participating Lorus retailers will be pleased
to provide you with a free, pre-addressed
Watch Service Mailer.
■CARE AND SERVICE OF YOUR
LORUS WATCH
1. Care:
• WATER RESISTANT
Your watch is classified into one of the follow-
ing four groups by the degree of water resis-
tance. Please read the appropriate item below
for proper use.
If your watch is water resistant, “WATER RESISTANT”
is shown on the back of your watch case. If
your watch is 100m or 50m water resistant, it is
so indicated on the dial. If your watch is non-
water resistant, there is no such indication.
Water resistant: These watches are designed
to withstand accidental contact with water, for
example, splashes or rain, but should not be
worn while swimming or diving.
Water resistant (50m): These watches are
suitable for swimming and can be worn in the
shower, but not for diving.
Water resistant (100m): These watches
are suitable for swimming or skin diving (with-
out heavy breathing apparatus), but not for
scuba diving.
Non-water resistant: Care should be taken
not to get your watch wet as water may damage
the movement.
•Do not depress any buttons or turn the crown
when the watch is wet.
•If the watch is exposed to salt water, rinse it
in fresh water and then wipe it thoroughly
dry.
1. Pry up the adjusting flap with a small screw-
driver or something with a sharpened tip.
2. Slide the clasp to adjust it to a desired size.
3. Close the adjusting flap.
■HOW TO ADJUST BAND LENGTH
• Sliding clasp band
■BATTERY CHANGE
The miniature battery SEIKO SR927W, MAXELL
SR927W, SONY SR927W or EVEREADY 399, which
powers your watch should last approximately 2
years. However, because the battery is inserted
at the factory, the actual life of the battery once in
your possession may be less than 2 years. Be sure
to replace the battery to prevent any possible
malfunction as soon as it runs down.
To replace the battery, we recommend taking the
watch to a local watch repair shop.
Note: If the stopwatch is used for more than 5
minutes a day, the timer for more than 5
minutes a day and/or the alarm for more
than 15 seconds a day, the battery life may
be less than the specified period.
A B
Crown
Mode indicator
Please complete, detach, and enclose
The dealer is required to endorse this guarantee
before it becomes valid.
Printed in Japan
Date of purchase
Instruction & Warranty Booklet
MEN’S ANALOGUE
ALARM CHRONOGRAPH
RWF Series (Cal. N945)
11-91 198L1