| | 1/100-second stopwatch |
| | Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times |
| | 12/24-hour format |
| | |
| | Accuracy: ±30 seconds per month |
| | |
| | Approx. capacitor operating time |
| | 14 days (from full charge to stopping of watch operation under the following conditions: watch not exposed to light, internal timekeeping, 20 seconds of alarms operation per day) on coin type capacitor |
| | Auto-calendar (28 days for February) |
| | |
| | requires no battery replacement |
| | |
| | Countdown timer |
| | Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) |
| | Daily alarms |
| | 5 independent daily alarms (4 one-time alarms and 1 snooze alarm) |
| | Hourly time signal |
| | |
| | Low battery alert |
| | |
| | Regular timekeeping |
| | Hour, minute, second, pm, date, day |
| | Solar powered |
| | |
| | Size of case / total weight |
| | HDD-S100 ...... 50.2 x 45.8 x 12.3 mm / 50 g |