This beautiful wrist watch i actually a project piece that may need some work to be worn properly. The band is a replacement that is not quite right but the watch is absolutely gorgeous. It is hallmarked Bucherer 17 Jewels Swiss and the back of the case Metal. Inside the back of the case 30388R 36064R. It runs but I can's guarantee that it will keep time. The watch with out the band measures 2'' x 1/2''. Age appropriate wear.