A rare Imholf desk clock with four revolving instruments comprised of an 8 Day Swiss clock displaying time, day of week, month of year, and alarm. The movement is set with 15 jewels and is working perfectly, condition is excellent for the age. One other is a barometer also excellent condition and working. The third is a thermometer in excellent condition and working. And the fourth is hydrometer in excellent working condition. The whole device was cleaned and restored to show well in any office or table to admire.