DW-6900MF-4

• Shock Resistant
• 200 Meter Water Resistant
• EL Backlight with Afterglow
• Multi-function Alarm
• Hourly Time Signal
• Flash Alert
  Flashes with buzzer that sounds for alarm, hourly time signal, countdown timer time-up alarm
• 1/100 Second Stopwatch
  Measuring capacity: 00’00.00”-59”59.99” (for the first 60 minutes)
  1:00’00-23:5959 (after 60 minutes)
  Measuring Unit: 1/100 second (for the first 60 minutes)
  1 second (after 60 minutes)
  Measuring modes: Elapsed time, split time, 1st-2nd place times
• Countdown Timer
  Measuring unit: 1 second
  Countdown range: 24 hours
  Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
  Other: Auto-repeat
• Full auto-calendar (pre-programmed until the year 2099)
• 12/24 Hour Formats
• Accuracy: +/-15 seconds per month 
  Battery: CR2016
• Approx. battery life: 2 years
• Module 3230

Size of case/total weight
DW6900DS 53.2 x 50.0 x 16.3mm / 67g
DW6900PL 53.2 x 50.0 x 16.3mm / 67g
DW6900MF 53.2 x 50.0 x 16.3mm / 67g
DW6900DS 53.2 x 50.0 x 16.3mm / 67g
DW6930A 53.2 x 50.0 x 16.3mm / 67g

source: casio