This keychain is crafted as a miniature 3D sculpture, featuring the same multilayered geometry found on the Heart Song watch dial.
Its incredibly detailed surface — built from raised letters, symbols, and micro-textures — makes traditional molding impossible.
Every piece must therefore be hand-poured, hand-finished, and individually inspected, resulting in a truly artisanal accessory rather than a mass-produced item.

Made from durable silicone with a soft, pleasant tactile feel, the cube invites you to hold and interact with it.
Its rounded edges and flexible material make it just as enjoyable to rotate in your hand as a premium anti-stress object, while still maintaining the sculptural precision of its 3D design.

The Pink edition features a soft yet vibrant magenta tone that enhances the cube’s expressive geometry — and if you would like a different feel, you can explore our four curated colors, each designed to perfectly complement your watch.

A unique companion piece that connects to your watch not only in style, but in craftsmanship.