Torinnov 16-inch Atomic Analog Calendar Wall Clock iphone (iOS) APP time-setting with selection of 64 time zones (Patent no.: US2015371104A1) Analog dials for time, month, date and day of the week, LCD second (no tick sound) Automatic Perpetual Calendar - Auto changing winter/summer time (DST) and the day of 28th~31st to 1st High time-accuracy IR sensors auto calibration of all hands (Patent no. US 8,934,321) Aluminum bezel and 3D printing of transparent Poly-carbonate dial