This is a very expensive looking, solid gold vintage 18k. gold ladies watch produced by the SWISS company “UNDA”. The case is solid 18k. gold and the bracelet is hollow, but made also of pure 18k. gold, allowing the bracelet to be lighter on the wrist. This bracelet is full sized and adjustable to two sizes; and will fit all wrist sizes. It an easily be shortened by having a jeweler pop out a link or two if desired. The SWISS made, manual winding movement was just cleaned and is accurate. The bracelet and case are without dings or scratches. The head of the watch measures 12.5mm. This 18k. gold vintage 1950’s watch is very fine looking on the wrist!