This is a very unusual, and now rare, bracelet made of mixed metals and decorated with Saudi coins.  It could have been gold gilt at one point, because there is a goldish sheen on the applique diamonds.  It is most likely a Saudi Arabian judging by the coins from the mid twentieth Century. 

• Inner circumference is 15 cm (6") with an extra 4.5 cm (1 3/4").
• Width is 4.3 cm (just under 1 3/4").
• Weight is 125 grams.