Disclosed is an electronic device, including: a base including: a first mounting part that includes a main surface provided in an annular shape; a second mounting part that is provided at an inner side of the first mounting part and includes a main surface and a raised part raised upward; and a third mounting part that is provided around the first mounting part; and an annular calendar disk that has a thickness smaller than a difference between a height of the raised part of the second mounting part and a height of the main surface of the third mounting part and includes an inner peripheral side partly disposed on the second mounting part. The main surface of the second mounting part and the raised part are both lower than a main surface of the third mounting part and higher than the main surface of the first mounting part.