TI 561 11Model: TI-561-11 (TI-500 prototype)Code: Ok
Battery:
  309
WCase: black plastic WBand: rubber matching bracelet Face: blue frame 
Manual: Yes Box: No  Lamp: bulb
Year: 1980 Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info: prototype created in the Rieti laboratories, for possible productions, red and green buttons, 
the same model with the writing TI-500  TI-561-11

 

 

 


 

TI 562 10Model: TI-562-10
Battery:
  393

WBand: black rubber
WCase: black plastic / Red frame
Manual: no              
Year: 1981 
Price:  $ 17.00

Info:  Men's chronograph in seconds / code ok

 


 

TI 562 11Model: TI-562-11
Battery:
  393

WBand: black rubber
WCase: black plastic / orange frame
Manual: no              
Year: 1981 
Price:  $ 17.00

Info:  Men's chronograph in seconds

 


 

TI 565 10Model: TI-565-10 (TI-250) Code: OkTI 565 10 box
Battery:
  309
WCase: black plastic WBand: rubber matching bracelet Face: blue frame 
Manual: Yes Box: No  Light: bulb
Year: 1980 Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info: gray buttons, 
the same model without the writing TI-565-11


TI 565 11 00

 

 

 


 

TI 565 11Model: TI-565-11Code: OkTI 565 11 00
Battery:
  309
WCase: black plastic WBand: rubber matching bracelet Face: blue frame 
Manual: YesBox: No  Light: bulb
Year: 1980 Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info:gray buttons, 
the same model with the writing Texas Instruments  TI-565-10

  TI 565 11 pcb