This great looking watch is vintage circa 1960s or 1970s. The watch case looks like it is made of stainless steel and the bracelet band tests sterling. There are no stamps on the bracelet or case back which state what they are made from. I did not open the watch case as I do not have the proper tool. It is not battery operated and runs well when wound. The watch will fit an 8 1/2 inch wrist and is 1 inch wide. The watch face says Omega DeVille. This piece weighs 83.6 grams and the overall condition is very good. This bracelet watch has the fashionable look of the Gucci and Hermes silver pieces of that period.