These products are very highly polished which brings out the intense, very deep red of the stone. It is then finished with an underglazed, glazed, or bisque finish. Underglaze provides a matte finish, while glazing produces a high gloss. A matte finish without glaze is called bisque. When glazing is completed, the product is then cooked at 800 degrees for approximately six hours.
Great expertise is needed to work with stoneware.
It is becoming a lost art. This material can be used in both microwaves and conventional ovens. This type of watch requires winding by hand. It is spring driven. This type of watch is self-winding.