Casio Sauna Watch SAN-100H-7BJR Unisex Sauna Bath Ganbanyoku (Rock Bath) Hot Spring This item is brand new and unused. 【Product Description】 This is a wristwatch "Sauna Watch" for sauna enthusiasts. It is designed with unique functions and features to ensure safe use even in high-temperature and high-humidity environments. You can switch between sauna mode and normal time mode with the push of a button. Even those who lose track of time in the sauna can easily use the 12-minute timer in sauna mode. Also, the simple dial and hands coated with luminous paint allow you to check the time even in a dark sauna room. It has heat and moisture resistance and can be worn safely in saunas below 100°C. The heat-resistant battery makes it difficult for heat to reach the internal components that are sensitive to heat. In addition, the exterior parts use resin to avoid burns, and the only metal screw is designed not to touch the skin. Resin that is resistant to moisture is used to prevent the inside of the watch from fogging up. The curl band, inspired by sauna locker keys, allows you to subtly feel the sauna even in everyday life. *The duration and brightness of the luminous paint vary depending on the intensity and duration of the light absorbed. *Fogging may occur if the watch is rapidly cooled after entering the sauna, but it is not a malfunction if it disappears within a few minutes. *Please refrain from using it in high-temperature environments other than saunas. Also, please use it for no more than 15 minutes while wearing it on your wrist in the sauna. *Because this item is also listed elsewhere, we will give priority to the first sale. Please understand this before purchasing.