System for making jewelry item i.e. watch bracelet, has extension part anchored on two ends of closure piece, and transverse grooves inserted on axle ends of tilted piece, where closure piece unlocks bevel shaped part of watch case

摘要

The system has a closure piece provided on a base. An axis of a shaft coupling bolt is provided on an opposite end of a joint part of a tilted piece. Transverse grooves are inserted on axle ends of the tilted piece. A clock is made to set by closing the tilted piece on the base. The closure piece unlocks a bevel shaped part of a watch case. An extension part is anchored on two ends of the closure piece.