Vintage Ruff and Tuff 25 Jewel 6 ATM Diving Watch Self Winding
vintage «Ruff and Tuff» 25-jewel, 6 ATM self-winding diving watch is a 1960s to 1970s Swiss or West German-made timepiece. It features an automatic movement, black dial, and a 6 ATM water resistance rating (equivalent to 60 meters or about 196 feet).