Just as the term implies, a Spherical Surface is the surface of a sphere, tracing a flawless, distortion-free arc. In watches, this form is often used for the glass that covers the dial. In other words, to me, a spherical surface is the ultimate mirror, reflecting the surrounding environment.

You might be surprised by how often spherical forms appear in everyday life—convex mirrors, for instance, or the headlights of classic cars. The beauty of the world reflected in these surfaces always takes my breath away. My fascination with this shape may stem from the inexplicable, almost mysterious charm that emerges when an ordinary scene is projected onto a spherical surface.

Among the watches I have designed in the past are models that incorporate spherical surfaces. When you peer into them, the surrounding light and space are quietly reflected, and you inevitably lose track of time as you are drawn into the reflection. This time, I wanted to amplify the emotion evoked by this “ultimate mirror,” so I took the bold step of creating a design devoted entirely to beauty.

By aligning the curvature of all four structural tiers—glass, bezel, case, and outer case (crown guard)—I have created a continuous spherical form that extends across the entire watch. Notice how each component connects seamlessly within the same sphere, and, of course, the beauty of the world reflected within it.

The back features the same spherical construction as the front. At the center, you can see the compact mechanical movement. Unlike most watches, the crown does not protrude from the case, nor are there any lugs for attaching the strap. This design underscores its purpose as a watch created solely for the appreciation of beautiful surfaces.

By positioning the crown precisely at the center, the form achieves perfect symmetry when viewed from the side—a reflection of the designer’s commitment to beautiful balance.

Two design variations are available: one finished entirely in a mirror polish, and another combining three distinct finishes—mirror, circular hairline, and radial hairline. In Ishihara’s own words, “Each finish creates a different expression, so I hope visitors will compare the actual pieces at the venue and experience the unique appeal of each.”