Aquastar Regate bracelet question

I have this Aquastar Regate version from 70/80 but it missed the bracelet.





As I read on the regatta-yachttimers.com website this version should have a steel Lobster Tail (or Armadillo) bracelet but I I am not able to search for it. Can you help me how should I find one?

Here a pic from regatta-yachttimers.com website how this bracelet should look like:

Thanks