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E-23
Timekeeping
Use the Timekeeping Mode (
TIME
) to set and view the current time and date.
• Each press of
D
in the Timekeeping Mode will change screen contents as shown below.
l
l
l
l
l
l
l
l
l
Day of the week,
month/day screen
Barometric pressure change,
date (month/day) screen
Time (hour, minute,
second) screen
Hour Hand
Mode Hand
Second Hand
Minute Hand
Day of week Month Day
Barometric
pressure graph
Month Day
Hour : Minutes
E-22
General Functions (All Modes)
The functions and operations described in this section can be used in all of the modes.
Auto Return Features
• The watch automatically returns to the Timekeeping Mode from other modes if the crown is not pulled
out or if no button operation is performed for a preset amount of time.
Mode Name Approximate Elapsed Time
Digital Compass 1 minute
Data Recall, Alarm 3 minutes
Altimeter 1 hour minimum
12 hours maximum
Barometer, Thermometer 1 hour
Initial Screens
When you enter the Data Recall, Alarm, or World Time Mode, the data you were viewing when you last
exited the mode appears fi rst.
E-21
• Button operations are provided for direct access to the Timekeeping, Digital Compass, and Altimeter
modes.
Timekeeping Mode
Digital Compass Mode Altimeter Mode
E-20
Selecting a Mode
• The illustration below shows which buttons you need to press to navigate between modes.
• To return to the Timekeeping Mode from any other mode, hold down
B
for about two seconds.
Countdown Timer Mode
Stopwatch Mode
Alarm Mode
Data Recall Mode
World Time Mode
Thermometer Mode Barometer Mode
E-19
Mode Reference Guide
Your watch has 10 “modes”. The mode you should select depends on what you want to do.
To do this: Enter this mode: See:
• View the current time and date in the Home City
• Confi gure Home City and daylight saving time (DST) settings
• Confi gure time and date settings
Timekeeping Mode E-23
Determine your current bearing or the direction from your current location to a
destination
Digital Compass Mode E-32
• View the altitude at your current location
• Determine the altitude differential between two locations (reference point and
current location)
• Record an altitude reading with the reading time and date
Altimeter Mode
E-42
• View the barometric pressure at your current location
• View a graph of barometric pressure readings
•
Enable alerts (display and beep) for noteworthy changes in barometric pressure
Barometer Mode E-58
View the temperature at your current location Thermometer Mode E-67
Recall records created in the Altimeter Mode Data Recall Mode E-70
Use the stopwatch to measure elapsed time Stopwatch Mode E-74
Use the countdown timer Countdown Timer Mode E-76
Set an alarm time Alarm Mode E-78
View the current time in 29 cities (29 time zones) and UTC (Universal Coordinated
Time) time
World Time Mode E-81
E-18
Power Saving
When turned on, Power Saving enters a sleep state automatically whenever the watch is left for a certain
period in an area where it is dark. The table below shows how watch functions are affected by Power
Saving.
• For information about enabling and disabling power saving, see “To turn Power Saving on or off” (page
E-89).
• There actually are two sleep state levels: “display sleep” and “function sleep”.
Elapsed Time in Dark Hands and Display Operation
60 to 70 minutes (display sleep)
Blank display, second hand
stopped.
Except for display and second hand, all
functions enabled.
6 or 7 days (function sleep)
Blank display, all hands
stopped at 12 o’clock.
Except for timekeeping, all functions
disabled.
• The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep
state when 6:00 AM arrives, however, it will remain in the sleep state.
• The watch will not enter a sleep state while it is in the Stopwatch Mode or Countdown Timer Mode.
• The watch will not enter a sleep state while barometric pressure change indication is enabled (page E-63).
To recover from the sleep state
Move the watch to a well-lit area, press any button, or angle the watch towards your face for reading (page
E-86).
E-17
Charging Times
Exposure Level (Brightness)
Daily
Operation
*1
Level Change *2
Level 5 Level 4 Level 3 Level 2 Level 1
Outdoor sunlight (50,000 lux) 8 min. 3 hours 25 hours 7 hours
Sunlight through a window (10,000 lux)
30 min. 7 hours 92 hours 25 hours
Daylight through a window on a
cloudy day (5,000 lux)
48 min. 11 hours 149 hours 40 hours
Indoor fl uorescent lighting (500 lux) 8 hours 135 hours – – – – – –
*1 Approximate amount of exposure time required each day to generate enough power for normal daily
operation.
*2 Approximate amount of exposure time (in hours) required to take power from one level to the next.
• The above exposure times all are for reference only. Actual exposure times depend on lighting
conditions.
• For details about the operating time and daily operating conditions, see the “Power Supply” section of
the Specifi
cations (page E-98).
E-16
Power Recovery Mode
• Performing multiple sensor, illumination, or beeper operations during a short period may cause the
recovery indicator (
RECOVER
) to start fl ashing on the display. This indicates that the watch is in the
power recovery mode. Illumination, alarm, countdown timer alarm, hourly time signal, and sensor
operations will be disabled until battery power recovers.
• Battery power will recover in about 15 minutes. At this time, the recovery indicator (
RECOVER
) will stop
fl
ashing. This indicates that the functions listed above are enabled again.
• Frequent fl ashing of the recovery indicator (
RECOVER
) indicates that battery power is low. Expose the
watch to bright light as soon as possible.
• Even if battery power is at Level 1 (
H
) or Level 2 (
M
), the Digital Compass Mode, Barometer Mode,
Thermometer Mode or Altimeter Mode sensor may be disabled if there is not enough power available.
This is indicated when the recovery indicator (
RECOVER
) is fl
ashing.
• Frequent fl ashing of the recovery indicator (
RECOVER
) probably means that remaining battery power
is low. Leave the watch in bright light to allow it to charge.
Operation Guide 5497
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