Solid To open please unscrew one swivel area
Average weight 20 grams Metal: 9ct Gold <-- Split -->Diameter 61 x 50.0mm. Width 10.1mm Band width 4.5mm The diameter is the internal measurements. Measurements are based on the average size. <-- Slit --> Hallmarking Guide: Gold less than 1g not stamped. More than 1g stamped.