Operation Guide 3088

Reference

This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch.

Moon Phase Indicator

The Moon phase indicator of this watch indicates the current phase of the Moon as shown below.

Moon phase indicator

 

(part you cannot see)

 

 

 

 

Moon phase (part you can see)

Moon Phase

 

 

 

 

 

 

 

 

 

 

 

Indicator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Moon Age

0.0 - 1.8

1.9 - 5.5

5.6 - 9.2

 

9.3-12.9

13.0-16.6

16.7-20.2

20.3 - 23.9

24.0 - 27.6

 

27.7 - 29.5

 

 

 

 

 

 

 

 

 

 

Moon Phase

New

 

First

 

 

 

Full

 

Last

 

 

Moon

 

Quarter

 

 

 

Moon

 

Quarter

 

 

 

 

(Waxing)

 

 

 

 

 

(Waning)

 

•The Moon phase indicator shows the Moon as viewed at noon from a position in the Northern Hemisphere looking south. Note that at times the image shown by the Moon phase indicator may differ from that of the actual Moon in your area.

•The left-right orientation of the Moon phase is reversed when viewing from the Southern Hemisphere or from a point near the equator.

Moon Phases and Moon Age

The Moon goes through a regular 29.53-day cycle. During each cycle, the Moon appears to wax and wane as the relative positioning of the Earth, Moon, and Sun changes. The greater the angular distance between the Moon and the Sun,* the more we see illuminated.

*The angle to the Moon in relation to the direction at which the Sun is visible from the Earth.

This watch performs a rough calculation of the current Moon age starting from day 0 of the moon age cycle. Since this watch performs calculations using integer values only (no fractions), the margin for error of the displayed Moon age is ± 1 day.

Tide Graph

The Tide Graph has six graphic segments, each of which indicates a different tide level. The current tide level is indicated by the displayed graphic segment.

 

 

High Tide

 

 

Low Tide

 

 

 

 

 

 

 

(Rising

(Falling

(Rising

Tide)

Tide)

Tide)

Tidal Movements

Tides are the periodic rise and fall of the water of oceans, seas, bays, and other bodies of water caused mainly by the gravitational interactions between the Earth, Moon and Sun. Tides rise and fall about every six hours. The tide graph of this watch indicates tidal movement based on the Moon’s transit over a meridian and the lunitidal interval. The lunitidal interval differs according to your current location, so you must specify a lunitidal interval in order to obtain the correct tide graph readings.

The tide graph displayed by this watch is based on the current Moon age. Remember that the margin for error of the Moon age displayed by this watch is ± 1 day. The greater the error in a particular Moon age, the greater the error in the resulting tide graph.

Lunitidal Interval

Theoretically, high tide is at the Moon’s transit over the meridian and low tide is about six hours later. Actual high tide occurs somewhat later, due to factors such as viscosity, friction, and underwater topography. Both the time differential between the Moon’s transit over the meridian until high tide and the time differential between the Moon’s transit over the meridian until low tide are known as the “lunitidal interval”. When setting the lunitidal interval for this watch, use the time differential between the Moon’s transit over the meridian until high tide.

Graphic Area

The information shown in the graphic area depends on the current mode.

Graphic Area

Mode

Graphic Area

 

 

Timekeeping

Timekeeping Mode seconds

 

Tide/Moon Data

No indication

 

World Time

Timekeeping Mode seconds

 

Stopwatch

Stopwatch time seconds

 

Countdown Timer

Countdown time seconds

 

Alarm

No indication

Flash Alert

When Flash Alert is turned on, the illumination flashes for the alarms, the Hourly Time Signal, the countdown alarm, and stopwatch auto start.

To turn Flash Alert on and off

 

 

 

 

 

 

1. In the Timekeeping Mode, hold down Afor about two

 

 

 

 

 

 

seconds until the current time flashes on the display.

 

 

l l l

l

 

 

This is the setting screen.

 

 

l

l l

l

2. Press C eight times to display the Flash Alert setting

l

 

 

 

l

screen.

 

 

 

 

 

 

l

 

 

l

 

 

 

 

l

 

 

l

 

 

 

3. Press D to toggle Flash Alert on (

displayed) and

 

l

l l l

l

l l

ll

 

 

 

off (

displayed).

 

 

 

 

 

 

 

 

4. Press A twice to exit the setting screen.

•The Flash Alert setting you select with the above procedure is applied in all modes.

• When Flash Alert is on, appears on the timekeeping screen for about one second whenever you enter the Stopwatch, Countdown Timer, or Alarm Mode.

Button Operation Tone

The button operation tone sounds any time you press one of the watch’s buttons. You can turn the button operation tone on or off as desired.

• Even if you turn off the button operation tone, the alarms, the Hourly Time Signal, the countdown alarm, and stopwatch auto start all operate normally.

To turn the button operation tone on and off

In any mode (except when a setting screen is on the display), hold down Cto toggle the button operation tone on ( not displayed) and off ( displayed).

•Holding down Cto turn the button operation tone on or off also causes the watch’s current mode to change.

•The indicator is displayed in all modes when the button operation tone is turned off.

Auto Return Features

•If you leave the watch in the Alarm Mode or Tide/Moon Data Mode for two or three minutes without performing any operation, it changes to the Timekeeping Mode automatically.

•If you leave a screen with flashing digits on the display for two or three minutes without performing any operation, the watch exits the setting screen automatically.

Scrolling

The Band D buttons are used in various modes and setting screens to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls at high speed.

Initial Screens

When you enter the World Time or Alarm Mode, the data you were viewing when you last exited the mode appears first.

Timekeeping

•Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are reset to 00 without changing the minutes.

•The year can be set in the range of 2000 to 2099.

•The watch’s built-in full automatic calendar makes allowances for different month lengths and leap years. Once you set the date, there should be no reason to change it except after you have the watch’s battery replaced.

World Time

•The seconds count of the World Time is synchronized with the seconds count of the Timekeeping Mode.

•All World Time Mode times are calculated from the current time in the Timekeeping Mode using UTC time differential values.

•The UTC differential is a value that indicates the time difference between a reference point in Greenwich, England and the time zone where a city is located.

•The letters UTC is the abbreviation for Coordinated Universal Time, which is the world-wide scientific standard of timekeeping. It is based upon carefully maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s rotation.

Illumination Precautions

•The electro-luminescent panel that provides illumination loses power after very long use.

•Illumination may be hard to see when viewed under direct sunlight.

•The watch may emit an audible sound whenever the display is illuminated. This is due to vibration of the EL panel used for illumination, and does not indicate malfunction.

•Illumination turns off automatically whenever an alarm sounds.

•Frequent use of illumination runs down the battery.

Auto light switch precautions

•Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light switch to operate when it is not needed, which shortens battery life. If you want to wear the watch on the inside of your wrist, turn off the auto light switch feature.

More than 15 degrees

• Illumination may not turn on if the face of the watch is

too high

more than 15 degrees above or below parallel. Make

 

sure that the back of your hand is parallel to the ground.

 

• Illumination turns off in about one second, even if you

 

keep the watch pointed towards your face.

•Static electricity or magnetic force can interfere with proper operation of the auto light switch. If illumination does not turn on, try moving the watch back to the starting position (parallel with the ground) and then tilt it back toward you again. If this does not work, drop your arm all the way down so it hangs at your side, and then bring it back up again.

•Under certain conditions, illumination may not turn on until about one second after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the auto light switch.

•You may notice a very faint clicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanical operation of the auto light switch, and does not indicate a problem with the watch.

4