Ref: B640WB-1BEF
Casio Watch.
Quartz digital movement.
Display functions:
Chronometer.
Ligth by pulsation.
Alarm.
Automatic calendar.
Format 12/24 hour.
Mineral crystal.
Rygid Resin case.
Stainless steel bracelet with P.V.D..
W.R. 3 bar = 30 m.