CASIO Sauna Watch SAN-100H-1BJR Brand new, unopened Black The sauna watch is a wristwatch created specifically for saunas. It features a 12-minute timer function that can be switched between "Sauna Mode ⇄ Normal Time Mode" with a single button, allowing for intuitive time management in the sauna. It's designed to withstand temperatures up to 100°C, with a waterproof case and a condensation-resistant structure made of resin to prevent fogging, ensuring it can be used safely in sauna environments. With simple operation and an intuitive button layout, you can focus on your sauna time without unnecessary stress. Model number: SAN-100H-1BJR Unisex, for both men and women Waterproof specifications, reset & mode function