Model: TI-551-02
Battery:
  AG5

WBand: brown rubber
WCase: brown plastic
Manual: yes           
Year: 1980                            
Info:  tritium light




Model: TI-555-10
Battery:
  AG5

WBand: black rubber
WCase: black plastic
Manual: no               
Year:                             
Info:  




Model: TI-551-10
Battery:
  AG5

WBand: black rubber
WCase: black plastic
Manual: yes           
Year: 1980                            
Info:  tritium light




Model: TI-558-03
Battery:
  AG5 or 393
WBand: steel
WCase: steel
Manual: 
Year:
Info:


Model: TI-552-10
Battery:
  392

WBand: black rubber
WCase: black plastic
Manual: no               
Year:                             
Info:  




Model: TI-558-04
Battery:
  AG5

WBand: steel gold
WCase: steel gold
Manual: 
Year: 
Info:


Model: TI-554-01
Battery:
  392

WBand: black rubber
WCase: black plastic
Manual: no               
Year:                             
Info:  




Model: TI-562-10
Battery:
  393

WBand: black rubber
WCase: black plastic
Manual: no               
Year:                             
Info:  




Model: TI-554-02
Battery:
  392

WBand: brown rubber
WCase: brown plastic
Manual: no               
Year:                             
Info:  




Model: TI-565-10
Battery:
  AG5

WBand: black rubber
WCase: black plastic
Manual: no               
Year:                             
Info:  alias TI-250