PURPOSE: To dispense with the rapping of a base fitting or the like for improving the working efficiency by working the base fitting and a decorative fitting at the same time as an integral casting fitting in a method for working a inconnecting fitting for a neck-lace with the base fitting rapped in press work and a cast decorative fitting heat adhered integrally to the base fitting.

CONSTITUTION: A port 3 to insert a spring fitting 7 for a necklace connecting member is provided on a circular base plate 2 of a base fitting 1 provided on the lower part of a decorative fitting 11. A inserting groove 4 contiguous to the inserting port 3 is formed of a rib 5 and the other end is formed linearly with the nearly same width as a spring fitting 7. Further, ribs 6 provided radially from the rib 5 surrounding the inserting groove 4 serve also as reinforcement for the base fitting 1 and the spring fitting 7 is provided with a knob 8 and locking elevated part 9. Since the base fitting 1 is constituted such that the rapping of the base fitting 1 is facilitated by wax during the process, precise cavity formation is facilitated, precise connecting fittings 10 can be integrally cast and the homogenization of work is accomplished for improving the quality of products by integral simultaneous casting.