Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUOH Daisuke and ARAKI Masayuki and KITAJIMA Yasuo,Development of Solar Power Analog Watch Using Bluetooth Low Energy,Micromechatronics,13438565,The Horological Institute of Japan,2014,58,210,19-23,https://cir.nii.ac.jp/crid/1390282681547710464,https://doi.org/10.20805/micromechatronics.58.210_19