Zigzag pearl necklace from Dürrnberg Hallstatt D

In the so-called Hallstatt D time (pre-Roman Iron Age)  are the ring eye pearls of pearls  displaced with a zigzag thread overlay.  This type of pearl is widespread and coming all over Europe  in an overall report from the Dürrnberg in Salzburg 12 times. The chain is dated 6/5. Century BC 
 The amber beads in the middle  were replaced by glass beads in the replica.