Collection: thun Material: Ceramic Care: Only use LR6 1.5V batteries and insert them in the direction indicated on the case; the battery lasts about one year; to adjust the time use the special wheel on the back of the mechanism; the watch automatically sets in motion; use only a dry soft cloth for cleaning; avoid contact with water and liquids or aggressive products; Remember that ceramic is fragile and must be treated. with carcarcarcar Weight (kg): 1.001