Average weight 9.3 grams Metal: Silver <-- Split -->Diameter 45.3 x 50.6mm. Width 13.9mm Band Width: 4.1mm Width is width of thickest point along the band, unless stated otherwise. <-- Slit --> Hallmarking Guide: Sterling Silver less than 7.78g not stamped but has a 925 mark. More than 7.78g stamped.