A friend of mine has the above watch and wants to get it repaired for sentimental reasons.

it’s been to Simon Freese and a couple of other watchmakers but all have returned it undone due to no parts available. It might even have been to Seiko, as Jean Lassale were originally part of Seiko Group.

Can anyone suggest any other avenues we could try please, either to repair the existing movement or fit a suitable replacement?

The existing movement is marked 7779A Japan, and the watch has MC007 on the caseback.

Thanks.