i have a ladies vintage 9ct gold watch and bracelet,the watch case is a dennison 87811 or 232843 and is also stamped A-L-D the is a 15 jewel Cyma movement 424k and numbered 57544. The watch is in perfect working order. i am trying to establish the age of the watch and possibly it value. i have been in touch with the Swiss factory but their records dont go far enough back. Any info out there?