I picked up an old Heuer Autavia chrono that way at a garage sale. It was in a coffee cup on a table full of $1 junk. The woman running the sale said it belonged to her father and hadn't worked in years. I gave her $10 for it, took it home and spent a few hours cleaning the food and dirt off of it. Turned out to be a beautiful 2 register VJ 7750 chrono that kept perfect time.