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TI 551 02Model: TI-551-02 Code: Ok
Battery:
  309
WCase: brown plastic WBand: matching bracelet Face: silver frame 
Manual: Yes  Box: No  Lamp: Tritium
Year: 1977 Price: $ 19.90
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: 
the same model in black TI-551-10