Operation Manual
60
61
seconds, the compass will automatically turn off and the 
4th center hand will return to its normal operation. This 
conserves battery life. Press C (COMPASS) at any time to 
keep the compass on for another 20 seconds.
NOTE: During compass operation, the second hand 
moves in two-second increments. 
ALTIMETER
OVERVIEW
ALIMETER 
SCALE
(HUNDREDS)
UPPER 
RETROGRADE
(THOUSANDS)
BUTTON C
(UNITS)
BUTTON A
(MAXIMUM  
ALTITUDE)
BUTTON B
(MINIMUM ALTITUDE)
LOWER RETROGRADE 
(UNITS)
CROWN










