Citizen C500 - Technical Specifications; Time and Depth Measurement Accuracy; Dive Alarm and Diving Mode Specs

Log memo:
Dive month and date
Dive number ...........................1~9
Maximum depth ......................1.0 m~80.0 m (4 ft~260 ft)
Dive time.................................0 min~100 min
Dive start time.........................Hours, Minutes
Dive completed time ...............Hours, Minutes
Average depth ........................1.0 m~80.0 m (4 ft~260 ft)
Lowest temperature................-5°C~+40°C/23°F~104°F
* Stored log data memos for the last 4 dives can be
recalled.
Dive alarm mode:
Depth alarm...................1.0 m ~ 80.0 m (to be set in units
of 1 m, with the provision to set the
number of times of alarms))
5 ft ~ 260 ft (to be set in units of
5 ft, with the provision to set the
unmber of times of alarms)
Dive time alarm .............5 min ~ 95 min (5 minutes unit)
Dive:
Ready for diving ............DIV mark flashing
Present depth................1.0 m ~ 80.0 m (10 cm units)/
4 ft ~ 260 ft ( 1 ft units)
* At depth less than 1.0 m, 0 m of
depth indication is shown.
Over 80 m, the display is – –.–.
4 ft ~ 260 ft (1 ft unit)
* At depth less than 4 ft, 0 ft of
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Q. SPECIFICATION
1. Caliber number C500 (Depth indication measured in meters/Temperature in
Centigrade)
C506 (Depth indication measured in feet/Temperature in
Fahrenheits)
2. Accuracy of time measurement ±20 seconds/month (at normal temperature 5°C~35°C/41°F~95°F)
3. Accuracy of depth reading ± (Indicated value X 3%+30 cm)
Conditions: constant temperature and excluding margin of error by
sight
*Assured accuracy temperature range: 10°C~40°C/50°F~104°F
Accuracy of depth reading is affected by surrounding tempera-
tures.
4.
Accuracy of temperature reading-5°C/23°F~+14°C/57.2°F:within ± 3°C/5.4°F
+15°C/59°F~+40°C/104°F:within ± 2°C/3.6°F
5. Watch operational temperature range
-10°C+60°C/14°F~140°F
6. Display functions 1) Analog display
Time: Hours, Minutes, Seconds
Time of correction: Year, Month, Day; Year (1994 - 2099)
2) Digital display
Time: Hours, Minutes, Seconds, AM/PM
Calendar: Date, Day of the week
Temperature: -5°C~+40°C/23°F~104°F
Alarm: Hours, Minutes, ON/OFF
Chronograph: Hours, Minutes, Seconds, 1/100
seconds (24 hour system), Split measurement
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