If you ever want a watch that has a pedigree with a benchmark milestone history, the original Jenny Caribbean 1000M is a piece every true Swiss watch aficionado, connoisseur, collector would like to have. It was the first diver's watch that was produced water resistant to 1 kilometer or 1000 meters, which is 3,300 feet. This was achieved by the Triple Safe monocoque case design and construction with a screw down crown and rubber double gaskets. The multi scale on the bi-directional bezel relates to decompression and not non-decompression. the timepiece has survived its owner, it is still running fine but having it checked and tested fot waterresitance may be a good option after 40 / 50 years It has a 17 jewel 18,000 Hz automatic Swiss 2452 movement with the date that can be advance by turning the time back to 9:00 O'clock after the next date. Case Size - 39.2 mm Lug End to End, 44 mm across the case including the screw down There is a Rhodium bracelet [DBGM] that comes with the watch it has a folding clasp. Will be shipped insured.