TI 808 31Model: TI-808-31
Battery:
  SR41

WBand: Matching bracelet
WCase: White metal
Manual: 
Year: 1981 / 70 $   
Info: Eleven-function wrist instrument shows constant display of hours, minutes, seconds, date and day of week, contdown/timer and chronograph with 1/100th second accuracy. Backlight / code ok. (? TI-8531-08)