Aisen Caro Chacin, a foreign designer, once introduced a Scent Rhythm fragrance watch. This unique watch uses the method of releasing specific fragrance at different times all day to remind time. The design without dial changes the time reading method of ordinary watches, which means that users can perceive time only through fragrance. Smell is a chemical sense of the human body, and it will be an interesting way to integrate this human perception into a special fragrance as a wake-up method for a specific period of time. The Scent Rhythm watch can release specific fragrance in order according to the biological clock of the human body. Different physiological states can include awakening, activity, relaxation and sleep.

Although the original design of the watch is to spray perfume every 10 seconds, users can still turn it off according to their own wishes. In addition, a real-time clock circuit is installed inside the Scene Rhythm, which can accurately track the time. The built-in lithium battery can be charged through the USB interface. It can be used for nearly one day after each full charge. Users can charge it through the micro USB port on the wrist strap. When fully charged, it usually provides 24-hour fragrance time alarm function.

Chacin hopes to stimulate people to do corresponding things at corresponding time through such a watch. However, this watch on Chacin's hand is still a prototype, and it still needs a lot of improvement.