Benrus Type II military diver. Watch was issued in June 1973. Great shape for a watch this old. Watch is running well. All lugs are intact. There are some scratches on the crystal and bezel. As well as a few indentations on the edge of the bezel as well. Works well to wear. Due to the nature of the design, only trained watch repairman are certified to open the case. I haven't had it tuned. It has been sitting in my watch drawer for the past 4 years. Comes on NATO strap. No box or papers.