◆ Product Details ◆ This is the "Sa-dokei" watch, designed for sauna enthusiasts. It features unique functions and design for safe use in high-temperature and high-humidity environments. You can switch between sauna mode and normal time mode with a single button. Even if you lose track of time in the sauna, you can easily use the 12-minute timer in sauna mode. The simple dial and luminous hands allow you to check the time even in a dark sauna room. It has heat and moisture resistance, allowing you to wear it safely in saunas up to 100°C, and the heat-resistant battery prevents heat from reaching the internal components. The exterior parts are made of resin to avoid burns, and the only metal screw is designed not to touch the skin. The use of moisture-resistant resin prevents 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 it absorbs. ※ Fogging may occur after entering the sauna and being rapidly cooled, 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, in saunas, please use it for no more than 15 minutes while wearing it on your wrist. Sauna-dedicated watch Color: Black ◆ Product Overview ◆ ◯ Time display (hours, minutes), 12-minute timer (minutes, seconds), reset function ◯ Water resistance: 5 ATM ◯ Body size / Weight: Approximately 40.2 x 35.4 x 12.9mm (length x width x thickness) / Approximately 24.5g ◯ Exterior specifications: Resin case (low-moisture-permeability resin), resin back cover (low-moisture-permeability resin), mineral glass ◯ Stretch curl band: Urethane resin ◯ Battery / Battery life: Heat-resistant battery / Approximately 5 years ◯ Usable environment: Saunas up to a set temperature of 100°C (use within 15 minutes while wearing on the wrist) ※ I would like to sell it to someone who can use it.