Rado’s rose ceramic dial changes colour in sunlight.

Rado's True Round Open Heart limited edition introduces a photochromic dial that changes from pale rose toward brighter magenta when exposed to ultraviolet light. The cut-out dial frames the movement through a figure-eight shape, which can also be read as an infinity symbol. The pale rose ceramic case and bracelet continue the dial's initial colour.

The watch uses an automatic R734 calibre with a Nivachron hairspring and a manufacturer-stated 80-hour reserve. Water resistance is listed at 50 metres, and the edition is capped at 888 pieces, each with a special case-back engraving. First announced in July, it joins Chronolume's archive as a previously uncovered release.