Omega stainless steel band parts, buckle that has a second attaches part that you can pull out to make it much longer. Buckle measures 16 mm wide and the links are 17 mm wide at the end. When closed you can push in the expanded part to size it. Lots of links and most are printed Omega on them. 9 mm wide on the end where the band pin would fit. Selling as is and pretty nice parts. No Returns. Thank you for looking