| | 1/100-second stopwatch |
| | Measuring capacity: 99:59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times |
| | 12/24-hour format |
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| | Accuracy: ±15 seconds per month |
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| | Approx. battery operating time |
| | 9 months on CTL1616 (Operating period with normal use without exposure to light after full charge) 24 months on CTL1616 (Operating period when stored in total darkness with the Power Save function ON after full charge) |
| | Auto-calendar (to year 2039) |
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| | Battery power indicator |
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| | Brightness alarm |
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| | Countdown timer |
| | Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 to 60 minutes (1-minute increments) Others: Auto-repeat, time up alarm, count up after countdown (up to 100 hours) |
| | Daily alarms |
| | 5 independent daily alarms (4 one-time alarms and 1 snooze alarm) |
| | Electro-luminescent backlight |
| | Full auto EL light |
| | Hourly time signal |
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| | Power Saving |
| | (Turns off the display when the watch is left in the dark) |
| | Regular timekeeping |
| | Hour, minutes, seconds, am/pm, month, date, day |
| | Shock resistant (G-SHOCK) |
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| | Solar powered |
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| | Telememo |
| | Memory capacity: Up to 30 sets of data, each set including; Name (8 characters) and telephone number (12 digits) Other: Auto-sort |
| | World time |
| | 29 time zones (27 cities), city code display, daylight saving on/off |