Even in today's environment of digital phones, devices and watches it's nice having wall clocks in the last issue of the Transistor Clock saga. Mechanical Spider Sculpture No 3 Recycled Watch Parts Clockwork Arachnid Figurine. Monostable 555 timer - 8-bit computer clock - part 1. And please wait for part 3, because than we will rebuild our clock from scratch. Offering electric, battery and quartz clock movement kit.