Vol.12 Bringing the Dream of Karakuri Clocks into Everyday Life: The Design of Fantasia

HomeDesign MuseumVol.12 Bringing the Dream of Karakuri Clocks into Everyday Life: The Design of Fantasia

Bringing the Dream of Karakuri Clocks into Everyday Life.

Amid the economic boom of the mid-1980s, large-scale karakuri clocks—musical automaton clocks that went beyond simply telling time—began appearing in shopping complexes and public spaces. At major shopping complexes such as Yurakucho Mullion and Sogo Yokohama, automated figures would come to life accompanied by music every hour on the hour, captivating passersby and transforming time into an experience. Fantasia was born from the desire to bring this sense of excitement closer to everyday life. Reimagining the expressive qualities of large-scale public clocks into a battery-powered wall clock for the home was far more than a matter of simple miniaturization. Every aspect was carefully redesigned—from harmony with interior spaces to the guidance of the viewer’s gaze—in an effort to bring emotionally engaging experiences into daily life.

Installed in the main lobby of Sogo Yokohama in 1985, this *karakuri clock* featured figures dressed in the traditional attire of 21 countries, appearing in sync with music every hour. Its dazzling performance attracted widespread attention and became highly popular at the time. The clock’s karakuri function was discontinued in April 2008.

Created in 1984 for Yurakucho Mullion, a landmark commercial complex in central Tokyo, the Mullion Clock features a dynamic performance in which the large dial rises every hour, revealing four figures from within that strike brass chimes in unison. Continuing to delight passersby to this day, the Yurakucho Mullion Clock remains a beloved presence in the cityscape.

This is one of the original puppets from the Mullion Clock, which performed music every hour on the hour for 37 years, from 1984 to 2021. Today, it welcomes visitors on the first floor of The Seiko Museum Ginza.

The Design That Defined the Origins of Home Karakuri Clocks

Introduced in 1988, the first-generation Fantasia RE501B laid the foundation for a new category of home karakuri clocks. Inspired by the vision of a fantasy world of puppets moving to music, it featured an enchanting performance in which figures holding musical instruments emerged from 12 doors, bringing surprise and delight to onlookers. In terms of engineering, the team was unwavering in its commitment to ensuring these mechanisms would “always move and always stop” precisely as intended. Alongside the structural design required to support its complex mechanisms, the project also involved pioneering new molding technologies and exploring new avenues of expressive form design to realize its large-scale housing. In pursuing both enjoyment and reliability, Fantasia introduced a new kind of time experience into the home.

The RE501B with its doors closed. Designed not only for clear time display, but also as a beautiful piece of interior décor.

The design process extended far beyond the exterior alone, with meticulous attention given to every detail—from the overall balance of the form and molding techniques to the expressions on the figures’ faces.

The fonts and graphics are also distinguished by their delicate, gentle, and cheerful character. The clock was designed for installation not only in homes, but also in schools, hospitals, and a wide range of public settings.

A Mechanical Clock Evolved to Be Smaller and Lighter

Released the following year in 1989, the RE505B is a model that builds on the philosophy of the original while enhancing practicality. By making the components smaller and lighter, ease of installation and handling were significantly improved. With interior design in mind, the clock was designed with an intentional separation of the outer door panels and the dial, allowing it to be displayed much like a piece of art. The dial features 12 highly visible Arabic numerals. The surrounding door panels feature 13 different illustrations depicting the lively atmosphere of a town, rendered in a soft, picture-book-like style that imbues the entire clock with a sense of narrative.

Compared to the original Fantasia, this model is significantly smaller and lighter. Its design features soft, warm colors that harmonize naturally with a wide variety of home interiors.

Each instrument-holding figure is individually hand-painted, giving each one a unique expression.

The illustrations on the doors were hand-drawn by the designer in charge, and the original artwork is still carefully preserved today.

An Evolved Model Combining Practicality and Delight

The most significant advancement of the RE540M, released in 1998, was its programmable function, which allowed the automated performances to be customized for any time of day. Widely adopted in schools and children’s facilities as an alternative to conventional school bells, the model was designed to create a more lively and enjoyable experience for children. Its design incorporated dynamic features such as opening and closing doors, moving figures, and LED lighting effects. Centered around the theme of a Forest Symphony, the clock evoked the image of a musical performance by whimsical characters, adding a rich sense of narrative to the experience.
Furthermore, shatter-resistant film was applied to the glass, and the musical selections were carefully chosen based on input from childcare workers—all part of a thoughtful design process intended to ensure safe and enjoyable use in environments where many children gather.

This model was developed around the classic round form—the quintessential shape of a clock. The hands were carefully designed to ensure excellent legibility while maintaining the torque required for stable movement.

Original characters inspired by insects were created for the design. The distinctive opening and closing motion of the doors was also developed through repeated prototyping and refinement by the designer.

The distinctive font and colors of the numerals were designed to balance readability, individuality, and a sense of fun.

Bringing the wonder of large-scale public clocks into the home and transforming clocks into a medium that creatively expresses time itself, Fantasia consistently pursued the idea of “time as an experience.” This vision was made possible through a technological foundation of energy efficiency, ease of use, and high reliability, combined with the power of design to translate these qualities into human emotion. Pursuing the question of how to create and share excitement, delight, and moments of tranquility within a space—this philosophy continues to live on in Seiko’s modern karakuri clocks.