Garrard Silver Jubilee Clock

The Garrard Silver Jubilee Clock. This is a  quarter chiming bracket clock of one month duration made to commemorate the 1977 Silver Jubilee. My parents bought this years ago - 1977 presumably. I have spent a lot of money having it repaired and just at the monet I can't get it to chime which is v frustrating. In front are some "Christmas trees" from Villeroy & Boch - which are significantly younger than 1977!