Good report!! My 1680 was bought in Lima Peru 1976 June by my dad. He was looking for a watch that could be used as a daily beater for surfing. I was 18 and that Tool watch was given to me as I started my University studies. I used, and abused it, for decades surfing and Karate were my main sports. Those tool watches were made to be used. Many years later a friend’s father offered me to take it to Switzerland and replace all damaged parts: Cristal, dial and new hands were replacing to a new looking face. Many years later the third dial came in and now the hands are white gold. The red Submariner was never red again. Now fully restored and new looking is only worn for special events. Casio’s, Islander and Phoibos are my new surfing partners...