Aichi Tokei (Aichi Clock) This is a pendulum-style, spring-driven mantel clock. It chimes with a pleasant "bong bong" sound. I have other spring-driven clocks, but the Aichi Tokei has a particularly nice chime. It is currently working, but I haven't checked its accuracy. There is an inscription on the back of the clock, likely as a commemorative item. W49 H23 Function: Pendulum clock Display type: Analog