Module No. 3553
Recording Altitude Readings
Use the procedure below to record measured altitude data.
There are three types of altitude data: manually recorded data, auto record data, and climb record data.
Use the Data Recall Mode to view or delete records.
Manually Recorded Data
The date and time are also recorded along with the altitude measurement. The watch has memory for up to 30 measurement records, and records are sequentially assigned numbers from [-01-] to [-30-].
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Enter the Altimeter Mode.
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Hold down (A) for at least two seconds until [REC] stops flashing.
This records the current altitude, date, and time.
If you do not remove your finger and continue to press (A), climb recording will be toggled between enabled and disabled.
Note
Recording altitude data when there are already 30 records in memory automatically deletes the oldest record to make room for the new one.
Auto Record Data
Entering the Altimeter Mode automatically starts altitude data measurement at regular intervals. Each auto record data measurement uses one memory record. Each record includes the date (month, day) and time of the measurement, along with the altitude data (high/low altitude, cumulative ascent/descent).
You can select the measurement interval.
Note
Auto recording ends when you exit the Altimeter Mode. Re-entering the Altimeter Mode restarts recording of cumulative values from where it was stopped when you last exited the Altimeter Mode.
Climb Record Data
Starting a climb record operation automatically records altitude data at regular intervals, even if you exit the Altimeter Mode. Each record includes the date (month, day) and time of the measurement, along with the altitude data (high/low altitude, cumulative ascent/descent).
The watch has memory for up to 14 measurement data records, and records are sequentially assigned numbers from [Mt.1] to [Mt.14].
Altitude is measured and recorded at regular intervals for up to 12 hours even if you exit the Altimeter Mode.
You can select the measurement interval.
Recording automatically stops when battery power goes low.
Note
Climb record data can be recorded for up to 14 climbs. It includes high and low altitudes, and cumulative ascent and descent.
To start measurement
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Enter the Altimeter Mode.
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Hold down (A) for at least five seconds. Release the button when [Trek] and mountain climbing graphic segments appear on the display.
This starts recording of altitude data (high/low altitude, cumulative ascent/descent).
Mountain climbing graphic segments flash or are displayed around the periphery of the display while recording is in progress. Each segment represents 12 minutes, and one lap around the periphery represents 12 hours.
To stop measurement
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Enter the Altimeter Mode.
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Hold down (A) for at least five seconds. Release the button when [Trek] [END] appears on the display.
This stops altitude data (high/low altitude, cumulative ascent/descent) recording.
Note
If you want to record more than 15 data records, delete old records to make room for the new data.
Auto Record and Climb Record Data Contents
The altitude data below is recorded by auto record and climb record operations.
High Altitude (MAX): 
Low Altitude (MIN): 
Cumulative Ascent (ASC): 
+
*
Cumulative Descent (DSC): 
+
*
Cumulative ascent and cumulative descent values are updated whenever there is a difference of at least ±15 m (±49 feet) from one reading to the next.
Note
In the case of auto record data, the auto record operation ends if you exit the Altimeter Mode. Re-entering the Altimeter Mode restarts recording of cumulative values from where it was stopped when you last exited the Altimeter Mode.
For climb record data, auto measurement continues even if you exit the Altimeter Mode.