Back on the ornamental elements of the openwork splendor. There's a compact cranium engraving established atop the tourbillon, which echoes the skulls we have seen in previous RM patterns. The indices may be mistaken for joint sockets, or small infant teeth. Turns out they are supposed to be guitar plectrums. https://rm6679874.actoblog.com/29054330/the-smart-trick-of-rm66-that-nobody-is-discussing