Optimum Time OS 4 Series User manual

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Thank you for purchasing the OS Series 4 watch.
Depending on the model, your series 4 watch will have some or all of the
following features:
Clock functions - Hour, Minute, Second, Year, Month, Date.
Auto calendar (from Jan. 1, 2005 to Dec. 31, 2099 )
One Daily alarm - This can be set to provide a wake up call, and while in
the alarm mode you can also see the real time.
Sailing timer - Available in periods of “5, 4, 1, 0”, “5 min”, “3
min” operating in either “Count-Down then Up”
or “Count Down Repeat” mode. Each with “Sync”
function to enable synchronization with the next
signal if the watch was not started at the exact
moment. Different beep sounds to indicate
different remaining count-down periods for
Sailing function.
Low Battery Detection - The battery level is checked every hour and an
icon indicates a low battery.
Backlight - The light will be turned on for 3 seconds once the
“LIGHT” button is pressed and released in all
modes.
Auto return feature- The display will auto return to the real time clock
(RTC) after 1 minute if no buttons are pressed
during setting modes and compass calibration
modes. It will also auto return to RTC during
normal use after 1 minute for all modes except
the sailing timer mode. This will stay until
another mode is selected using the mode button.
All the above features are found on all Series 4 Sailing Watches.
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The following features are found on certain models only:
High/Low Tide Graph - Shows the state of the tide at the present time for
one of three chosen locations.
Tide Predictor Function -Predicts high and low tide times for three
different locations in any day.
Digital Compass - Shows compass bearing. Adjustable for Angle of
Declination (Variation).
LCD DISPLAY
Key Buttons
Six buttons are available. They are [MODE], [CLEAR], [START /STOP],
[SYNC],[PROG], & [LIGHT] (in clockwise order).
[MODE] : - Scroll through modes
- Select items in setting modes
[CLEAR] : - Press and hold for 2 seconds to enter setting mode
- Press once to exit from setting
- Press once to reset timer when stopped
- Press and hold for 3 seconds to enable / disable audible
timer alarm
[START/STOP] : - Start / Stop timers
- Enable or Disable daily alarm
[SYNC]: - Activate the “Synchronize” feature in Timer mode
- [Sync] + [Clear] to toggle Count-Down Repeat or
Count-Down, then Count-Up
- [Sync] + [Prog] to select timer pre-programmed period
[PROG] : - Press for increment during setting
- Select the pre-programmed period in Timer mode
- Turn on backlight (certain models only)
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Operation Mode Description
Time Mode
How to set the time :- Use the [MODE] button to get to the real time mode. (The word
TIME will appear)
Please note: With this watch, it is necessary to set the seconds before the hours and
minutes. You will need to know the actual time of day locally.
Enter the time-setting mode by pressing the [CLEAR] button and hold it down for
approximately 2 seconds until a beep is heard. Once in the time setting mode, the second
display begins to flash and the upper line shows the word “SEC”.
Find the real time locally (maybe from the speaking clock or teletext), and when the real
time locally reaches zero seconds (after seconds 57, 58, & 59), press [PROG] to reset the
“Second” digits to zero. i.e. Do this when the real time of day reaches a full minute.
NOTES : Each piece of data to be changed is accessed via the [MODE] button and altered
via the [PROG] button. The watch will automatically leave the setting mode if no key is
pressed for 1 minute.
After adjusting the “Second” digits, press [MODE] to proceed to the next item. This will
be the HOUR setting and is altered by pressing the [PROG] button. The setting sequence
is in the order of second, hour, minute, year (available from 2005-2099), month, date,
12Hour/24Hour, Month-Date or Date-Month, and Beep On/Off. (With the beep on, every
time you press a button it will beep, with the beep off, the watch will be silent except for
the countdown timer alarm – this is silenced a different way – see later). You can repeat
around the sequence again by pressing [MODE] more times. Press [PROG], to increase
each chosen setting in individual increments. Pressing and holding the button for 2
seconds will activate the fast setting.
Once all values are correct, confirm all settings by pressing [CLEAR]. This will also return
to the Time mode.
The watch will automatically leave the setting mode if no key is pressed for 1 minute.
Alarm Mode
One daily alarm is available. Press [MODE] until you enter the Alarm mode. The dot
matrix panel shows the word “ALARM” and the alarm time is displayed in the middle
bigger digits while the lower display shows the real time clock.
To switch the alarm on, press [START/STOP] while in the alarm mode. When the alarm is
enabled, the icon will be displayed together with the message “On”. To turn it off
simply press [START/STOP] one more time
When the real time reaches the alarm set time, a 30 second alarm sound will be
generated (as long as the alarm is on). You can press any key to stop the alarm sound.
How to set alarm time :-
Enter the setting mode as described. Press [CLEAR] and hold it for 2 seconds to activate
setting (a beep is heard). Setting starts with hour digits which are seen flashing.
Use [PROG] to alter the hour digits. Then move to minute digits by pressing [MODE].
Adjust the minute digits with [PROG] as well. Finally, press [CLEAR] once to exit setting
and confirm the chosen alarm time.
NOTE: Whenever the alarm time is changed, the alarm will be automatically enabled. If
you want to set the alarm time, but do not want it to go off, you must turn it off.
Sailing Timer Mode
Press [MODE] in until you go to the Timer mode. The dot matrix panel shows the word
“TIMER”
The big digits show the timed period in minutes and seconds. The smaller digits show the
RTC on the lower row.
The default pre-programmed timing sequence for the watch is “5-4-1-0” minutes.
Once in Timer mode, there are three counting options you can select. They are: Count-
Up, Count-Down and Up, and Count-Down Repeat.
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Make sure the timer has been stopped (press [START / STOP] to stop the timer if timer is
running) before you change the counting option.
Firstly reset the timer value by pressing [CLEAR] once. The display is at zero. Then press
the button [SYNC]. Keep holding the button [SYNC] and press the button [CLEAR] once.
This changes between Countdown And Up and Count-down Repeat, which will be echoed
on the upper display together with the indication of icons +and respectively.
At the end of selection, release [SYNC] to confirm.
When timer starts from zero under countdown-then-up operation, it will become a count-
up timer. This will show an elapsed time. You can stop and then restart the timer as often
as you wish.
Besides the count-up option, you can have preset countdown timing intervals. You have
to choose the pre-programmed period. Before setting the pre-programmed period, stop
the timer and reset the timer to zero. While holding the [SYNC] button, press [PROG]
button once press to scroll through each setting of “5-4-1-0” minute, 5 minute, 3 minute
and 1 minute period. The selection will be shown on the dot matrix as well as the
corresponding icons.
Finally, release [SYNC] to confirm.
Having defined the operation mode and selected the program period, you can program
the timer value before starting the timer.
If count-down then up mode has been selected, you can set multiples of the pre-
programmed-period as the chosen value with the use of the [PROG] button. Say,
multiples of five can be set to programs “5-4-1-0” minute or 5 minute while multiples of
three can be assigned to 3-minute and for 1-minute program, the timer value can be
incremented by one for each press of the [PROG] button.
For example, you are going to set the timer to 15 minutes under “5-4-1-0” minute
program.
Press [PROG] once to increment the timer by 5 minutes.
Press [PROG] again to increase the timer to 10 minutes.
With the third pressing, the timer will be added by another 5 minutes to 15.
On the other hand, in countdown repeat mode, you can only have one period of 5,4,1,0.,
5 minutes or 3 minutes. You can have any multiples of 1 minute; up to 59 minutes.
How the timer works
a) Programmable timer value :- 00.00
Operation mode: - Count-down then up
Press [START/STOP] to start the timer. The timer will count up from zero in minutes and
seconds up to a maximum of 59 minutes and 59 seconds. The display will also show a
flashing up arrow icon to denote count-up.
b) Programmable timer value :- 00.00
Operation mode: - Count-down repeat
NOTE: It is not possible to start the timer with zero programmable value under count-
down repeat mode. This is not a fault of the timer, but just an attempt to get the timer to
perform an impossible task.
c) Programmable timer value: - ? minutes
Operation mode: - Count-down then up
Press [START/STOP] to start the timer. The timer will start counting down. The display
will also show a flashing down arrow icon to denote count-down.
When the timer counts down to zero, it will switch to count-up. Meanwhile, the up-arrow
icon will flash instead. The timer will stop automatically when it reaches to 59 minutes
and 59 seconds.
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d) Programmable timer value: - ? minutes
Operation mode: - Count-down repeat
Press [START/STOP] to start the timer. The timer will start counting down. The display
will also show a flashing to denote the operation.
When the timer counts to zero, the programmed time will be reloaded and the next count-
down cycle repeats.
Timer Audible Signals
The timer has short audible signals for each full minute. During the 5,4,1,0 sequence
there is a more pronounced audible at minutes 4 and 1. In all count down settings the
last minute has a comprehensive audible warning sequence.
The “Synchronize” feature :-
The “Synchronize” feature is active only when the timer is counting down. Once the timer
is started, you may feel that you were late starting your watch and that consequently your
watch is a few seconds late. You may even have missed the preparatory signal
altogether. This is why we need the “Synchronize” feature in the watch.
When the next signal is given by the race officer, just press [SYNC] and the display will
drop down to the next full minute in countdown. For example, if the watch shows 4’08”,
pressing [SYNC] will send the watch to 4’00” and it will continue to count down.
Likewise if the watch shows 3’35” or even 3’59” and you press [SYNC], the time will
jump to 3’00” directly. Therefore the [SYNC] button can be used to get your starting
sequence quickly in perfect unison with the official starter.
Timer Audible Signal enable / disable :-
The default setting for the timer audible signal is enabled and the icon will be visible.
If you want to use the watch purely as a visual reference only, it is possible to silence the
audible signal by pressing [CLEAR] for 3 seconds in Timer mode or vice versa if the
audible signal is originally OFF. The icon will appear and disappear alternately.
Tide Predictor Mode (Not found on all models)
The tide predictor is a convenient way to calculate tide status in three locations of your
choice. It is necessary to decide which locations you want to correspond to the locations
A,B and C.
NOTE: The future tide predictions are arrived at by a calculation method based on 2 tide
cycles taking 24 hours, 50 minutes and 47 seconds. This will never be as accurate as
local tide tables which take into account all local conditions that influence the tide and
cause it to vary from the calculated result.
We strongly recommend that the watch is used as a predictor rather than a definitive
source of data.
The calculation method allows tide predictions to be made well into the future, but it is
recommended that the watch is reprogrammed to the local tide tables on a regular basis.
Use the [MODE] button to enter the Tide mode. The word “TIDE” will be shown on the
dot matrix.
Then a second later, the tide time including indication whether it is high (hi) or low (lo)
tide will be displayed.
The first tide time for the specified date will be shown, which may be high tide or low tide
depending on what is due next in that location.
If the location (either A, B or C) on display is not what you desire, press [START/STOP] to
scroll through to the next location (i.e. A, B or C).
Press [START/STOP] further to view the third location.
Go back to location “A” by pressing [START/STOP].
High Tide Time Setting for location A
Press and hold [CLEAR] for 2 seconds to enter setting mode. The current high tide time
will be displayed, the dot matrix says “SET” and the year is flashing.
As with time setting for the watch, use [PROG] to alter a setting, and [MODE] to proceed
to the next setting. Also the watch will return to TIME mode if nothing is pressed for 1
minute.
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(Note: - The tide time is calculated by basing on the data that the period over which the
two complete cycles are experienced is 24 hours and 50 minutes and 47 seconds”)
If you want to set a tide time for a different location, then the first thing that must be
done is to enter the tide function (using [MODE]) and change to the location required
using [START/STOP].
Then proceed to alter that location’s information in the same way as described above.
Tide Predictor Graph (Not found on all models)
Whichever tide location is chosen in the tide mode will be the subject of the tide graph
shown in the dot matrix display during normal time mode and timer mode. After initially
showing the word TIME or TIMER 9for about 2 seconds) to show which mode you are in,
the tide graph will then appear in the dot matrix. The column of the graph just left of
centre in the dot matrix flashes every second. This represents the current time and shows
the current tide state for the location shown just to the left of the dot matrix. If the
flashing area is right to the top of the dot matrix it is high tide, and if it flashes near the
bottom of the dot matrix then it is low tide. In between it will be possible to see if the tide
is coming in or going out.
Compass Mode (Not found on all models)
Enter the Compass Mode using [MODE]. The display will show “COMP”. Meanwhile,
bearing measurement starts.
About two seconds later, the display will show one of the 16 classified directions as
defined below. In order to minimize power consumption, the bearing measurement will
last for 30 seconds only. If you want to extend the measurement duration to 3 minutes,
press and hold [START/STOP] for 3 seconds. A beep will be heard when you first press
[START/STOP], then 3 seconds later another beep confirms your selection. Then the unit
will exit from Compass mode automatically and go back to Real Time Clock mode after 3
minutes. If you wish to return to another mode at any time press [MODE] and the 3
minute period will be cancelled.
If distortion is detected or there is time-out error, the display will show “FAIL!” on the
upper LCD.
Setting starts with year digits. Adjust the year digits by pressing [PROG]. Then press
[MODE] to move to the next items. The setting sequence is in the order of year, month,
date, hour and minute. Adjust each one using the [PROG] button Fast setting is also
available by holding the [PROG] button in.
At the end of setting, press [CLEAR] once again to exit from setting mode and back to
tide time display. The tide level chart for the time on display will be re-estimated basing
on the newly entered high tide time.
To View the tide time at any designated date
For example, in January 1, 2005,
1st high time is at 12:30 05 am
1st low tide time is at 6:42 42 am
2nd high tide time is at 12:55 19 pm, and
2nd low tide time is at 7:07 56 pm.
Say, the display is now showing the first high tide.
Press [SYNC] to scroll through other tide times. The next shown will be a low tide, then
the next high tide, then the next low tide etc. As the days advance so the date will change
Or if you want to view the tide times on other days quickly, you can press and hold
[SYNC] for 2 seconds to activate date scrolling, or month scrolling, or year scrolling. The
scrolling will start with date scrolling and you can see the date digits on flashing. Press
[PROG] to advance the date and the corresponding tide times will be updated instantly on
the middle line. To move to month scrolling or year scrolling, press [MODE]. The order is
in the sequence of date, month and year. Press [PROG] as well to adjust the selected
digits. Once the required year is chosen, the year digit will remain flashing. During this
day / month / year scrolling, you can still press [SYNC] to read the tide times for the
future high/low tides and dates beyond the chosen date as described above.
To exit from day / month / year scrolling and be back to the current day, press [CLEAR]
once. This will take you back to the current tide time for that location.
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NOTE: Declination (variation) angle varies according to your location. This can be found
on a local navigation chart. For accurate results we recommend that this offset is
programmed into the watch.
Likewise magnetic north is slowly moving, so exact accuracy cannot be guaranteed.
The following table gives some angles for various locations. Enter a +ve angle for East
and –ve for West
At this moment, you may need to re-calibrate the digital compass as described below. If
valid data still exists in error cases, bearing data will also be shown on the display
together with “FAIL!” indication.
NOTE : It is also possible to gain fast access to the compass mode by pressing [MODE]
and holding it for 2 seconds. A beep at the start and another at the end of the 2 seconds
confirm this.
How to calibrate the Digital Compass :-
This should be done when the watch is new or whenever the battery is changed or after a
FAIL message
Two calibration methods are available, and both can be used to get greater accuracy.
One is the rotation calibration and the other is to adjust the Angle Of Declination
(Variation), which is the angle between the magnetic north and the true north.
Press and hold [CLEAR] for 2 seconds to activate compass calibration. The display will
show “-TURN-” on the upper display. It indicates that rotation calibration is ready.
Press [START/STOP] at the state above to start the rotation calibration. The outer ring
icons will make a revolution in around 16 seconds. Turn the watch by following the icon
movement (i.e. turn the watch around once slowly in about 16 seconds). When a
revolution has been completed, press [START/STOP] again to stop the rotation
calibration. Now the display will show “donE”.
If you do NOT want to go on with the adjustment of the declination (variation) angle,
press [CLEAR] once. This takes you straight to compass mode without this adjustment
If you DO want to go on with the adjustment of the declination (variation) angle, press
[MODE] once.
The current declination (variation) angle is displayed and is flashing. You can press
[PROG] to adjust the angle in the order of 0∞to 90∞, then -90∞to 0∞. At the end of the
angle setting, you can press [MODE] to go back to rotation calibration or [CLEAR] to exit
from calibration and back to Compass mode. Measurement will start when you are back
to Compass mode.
CITY DECLINATION CITY DECLINATION
Abu Dhabi 1-E Lisbon 5-W
Amman 3-E Little Rock 2-E
Amsterdam 1-W London 3-W
Athens 3-E Madrid 3-W
Atlanta 4-W Manama 2-E
Bangkok 0Manila 1-W
Beijing 6-W Mexico City 6-E
Berlin 1-E Moscow 9-E
Bern 0Nairobi 1-E
Boston 16-W New Delhi 1-E
Brasilia 19-W Oklahoma City 6-E
Brussels 1-W Oslo 0
Budapest 4-E Ottawa 14-W
Cairo 3-E Paris 1-W
Canberra 12-E Phoenix 12-E
Cape Town 23-W Prague 2-E
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CITY DECLINATION CITY DECLINATION
Copenhagen 1-E Rome 1-E
Denver 10-E Sacramento 16-E
Dhaka 0Saint Paul 2-E
Harrisburg 11-W Salem 18-E
Havana 3-W Salt Lake City 14-E
Helsinki 6-E San Jose 0
Hong Kong 2-W Santa Fe 10-E
Honolulu 10-E Santiago 5-E
Islamabad 2-E Seoul 7-W
Jackson 1-E Singapore 0
Jakarta 1-E Stockholm 3-E
Jerusalem 3-E Taipei 3-W
Juneau 25-E Tokyo 7-W
Kabul 2-E Vienna 2-E
Kathmandu 0 Washington,DC 10-W
Kuala Lumpur 1-E Wellington 22-E
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LOW BATTERY INDICATOR
The timer is equipped with a low battery indicator located just
above the right hand two digits of the lower row of 6 digits.
When the indicator is on, it is time to change the battery. It is
likely that the watch will function for several days with the
indicator on.
TO CHANGE THE BATTERY
1. Take note of which way up the caseback fits. Using a cross-point screwdriver
carefully remove all screws from the timer, and remove the case back from the case
front to reveal the battery.
2. There is a protective label over the battery. This is required for insulation purposes
and must be replaced when the new battery has been fitted
3. Remove the old battery and replace it with a new one making sure that the +ve
contact faces upwards. (Avoid holding the battery so that your fingers touch both
the +ve and -ve contacts at the same time).
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4. The battery type is a 3.0 Volt CR2032 Lithium Battery.
5. Remember to replace the insulating label
6. Replace the case back making sure that the battery is correctly fitted, that the rubber
seal around the case back is seated properly, that the case back fits without
interference and is the correct way up. If possible add some silicon grease or
Vaseline to the rubber seal.
7. Replace the screws taking care not to over-tighten them to the point of stripping the
thread.
Nous vous remercions d'avoir acheté la montre OS Série 4.
Selon le modèle, votre montre Série 4 présentera quelques-unes ou la
totalité des fonctions suivantes :
Fonctions d'horloge : Heure, Minute, Seconde, Année, Mois, Date.
Calendrier automatique (du 1er Janv. 2005 au 31
Déc. 2099 )
Une Alarme Journalière : Elle peut être réglée pour assurer le réveil ; en
mode alarme, vous pouvez aussi voir le temps réel.
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