A very unusual Turkish bracelet. The ones I've seen with this pattern come from East Anatolia - Lake Van (Armenia) region, but they all have niello decorations. Hinged and closes with a pin mechanism and is in good vintage condition.
Inner circumference is 18 cm (7"). Inner diameter is 6 cm (2 3/8"). Width is 2.8 cm (1 1/8") at widest. Weight is 30.2 g.