Working but only tested ever so briefly & hasn’t been tested for time, balance staff & wheel are good. It may need a service or repair to keep perfect time and to sort out any other issues. The case back is stamped 10% IRID PLAT IRID short for Iridium, PLAT for Platinum. Serial number on movement is T766970 for the year 1950. Case back has some minor wear, bracelet is white base metal and would suit up to a 16cm wrist. Some of the Diamonds exhibit surface wear.