Makura dokei (pillow clock)

The makura dokei (pillow clock) is a spring-driven, standing bracket clock with its brass gears and springs inside a sandaiwood case. The speed of most makura dokei (pillow clocks) is regukated by a circular bakance. These clocks had adjustable dials with varying scales to accommodate the Japanese temporal time system. Some of these clocks were very valuable with the brass pieces were dicorated with pillars and gold inlays, and were sometimes referred to as the daimyo clock. The makura dokei (pillpw clock) has brass gears and uses a pendulum as the speed regulator. Aside from the adjustable dials to accommodate the Japanese temporal time system, this clock also has a sophisticated calendar marking the zodiac and lunar movements. It akso has a built-in music box at the top where the 12 bells lined up horizontally will play automatically. This is the first music box to be introduced to Japan. Not only is Denjiro's makura dokei (pillow clock) the first clock in Japan to have built-in music box, but it is an invaluable cultural heritage marking the high level of mechanical craftsmanship in Japan at the end of the Edo period.