Really nice piece done by A. Cadman. The piece of Pilot Mt. Turquoise is beautiful!! It measures about 21x12mm. Weighs 36.6 grams. It is 5/8" tall. Inside measures 5 1/2" with a 1 1/8" opening . will fit a 6 1/2 to 7 1/2" wrist depending on how tight or loose you want it.