About the Watch in short. The DWD5500 models are based on the DW5500 series, with its distinctive fully covered button construction, to which has been added a metal display frame and EL backlight.
DW-D5500 Model Range *may be updated
DW-D5500BB-1 DW-D5500MR-4 
DW-D5500-1 DW-D5500-1B
Official DW-D5500 Specs / Features *for base version DW-D5500
- Case / bezel material: Resin
- Resin Band
- Shock Resistant
- Mineral Glass
- 200-meter water resistance
- Electro-luminescent backlight
- Auto light switch, afterglow
- Flash alert
- Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer progress beeper, and stopwatch auto start
- World time
- 29 time zones (48 cities), daylight saving on/off
- 1/100-second stopwatch
- Measuring capacity: 23:59’59.99”
- Measuring modes: Elapsed time, split time, 1st-2nd place times
- Other: 5-second countdown auto start
- 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)
- Others: Auto-repeat, progress beeper on/off
- 3 multi-function alarms (with 1 snooze alarm)
- Hourly time signal
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Regular timekeeping: Hour, minute, second, pm, month, date, day
- Accuracy: ±15 seconds per month
- Approx. battery life: 10 years on CR2025
- Size of case : 45.4×46.2×13.6mm
- Total weight : 56g