Seiko SEIKO chronograph SND193 watch

chronograph Calendar (date)/1/20 second meter Small seconds/12 hours meter screw back Stopwatch/60 minute meter Seiko's "Chronograph" Silver round case. The dial is blue and the indexes use Arabic numerals. As for the functions, it is equipped with a chronograph, a 1/20 second counter at the 12 o'clock position, a date display function at the 3 o'clock position, a 60 minute counter and a 12 hour counter at the 6 o'clock position, and a small seconds counter at the 9 o'clock position.