Approx. Ø37,5mm, steel, rotatable bezel, steel bottom with diver and 2000, automatic movement, original tritium dial with distinctive light indexes and light pointers, central second, date, stainless steel bracelet, work runs badly and needs service/cleaning/repair. The watch is extremely rare and has the same look as the Jaquet Droz "Skin Diver 25" Ref. 2000(https://www.cortrie.de/go/MeL) produced under the same reference.