2014 年 58 巻 210 号 p. 19-23
We have developed solar powered analog watch using Bluetooth low energy (BLE). We think "Beautiful", "Luxury" and "Hands (Analog)" are fundamental key factors for what watch is, and we believe releasing this BLE watch as an "Solar Power Analog watch" is quite important to expand the new user scenarios. We describe how we tried to combine the new technology "BLE" with a standard analog watch system.