Well, got it out ok and the chrome ring came off very easily with two strap wrenches.
I could hardly make out some of the numbers, they had so much patina on them.
After removing the needle (came off easily) and the dial, I got some petrol in a dish and with a cotton wool bud soaked in petrol gingerly wiped one of the worst soiled numbers, it came up a treat, so I did all of the numbers, no sign of the numbers being damaged.
I then put the whole workings into the dish of petrol and gave it a good shaking.
Took it out and checked it, all OK, so put it back into some clean petrol to soak for a while then gave it another swish around in the petrol.
I then let it drain onto a piece of newspaper before giving it a blow with a hair dryer.
I cleaned the dial with some kitchen towel with a drop of petrol on it, dried it and gave it some polish.
I cleaned the needle with some petrol on a cotton bud, de-greased it and sprayed it white.
Then got some 3 in 1 oil and oiled the workings, left it on it's side for excess oil to drain out.
I will put it back together tomorrow.
I have got a new cable coming from Feked,
Thanks chaps for all the advise, appreciate it.
Roy.