When you live near the ocean, you measure your days in sun-kissed smiles, waves surfed, or tide pools explored. This unique tide clock is a beautiful way to stay in tune with the flow of that watery world. Instead of displaying hours and minutes like a regular clock, this piece's single hand tells you the hours until high or low tide in areas that have regular, semidiurnal tidal cycles (that's two high and two low tides of the same size per lunar day). The clock's face is made using smooth, tumbled marble, and is custom printed with a map of the waterway or coastline near your beach house, marina, or unforgettable vacation spot. Made in Providence, Rhode Island.