Oxford University recently conducted a study with the company Himalayan Bowls and found that singing bowls have been made in the Himalayan region for at least 600-800 years, and are likely related to bronze bowls produced in Central and Western Asia. Extensive metallurgical analysis by Himalayan Bowls and Oxford University has discovered that the bowls are made from "high tin bronze," also known as "bell metal bronze," which is a pure mixture of copper and tin. Contrary to popular folklore, there is no evidence to support the claims that singing bowls contain "7 metals" (Joseph Feinstein, 2011).
This seems to dispute even the idea of 5-metal bowls. As for your pendok, it may indeed be suasa if it has a gold look and does not tarnish. Again, not 5 metals, but 3. I have never hear of any 5-metal mixtures being used on pendoks, but maybe someone else has more info.
The photo of the statue is fairly useless in this conversation since the true color of the mixed metals here are unknown. Color shifts dependent upon light in which it is shot and white balance used. Also colors shift from one computer screen to another. Telling us that your pendok looks like the metal in this statue does not bring us any closer to determining the materials that your pendok have been made of. It probably looks different on my screen than on yours. You would have to have it tested to know anything definite.
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