I have a Diesel 1236 and need extra links to be added to strap.
Have tried many jewlers without success. Can anyone help please.

Use a pocket knife and put the blade in the grove in between the strap and the steel of the case and pull towards the leather of the strap the pins are sping loaded and work simular to a miniature shower rods very simple so dont get nerves bout it if all else fails you can even just destroy them geting them out and get new pins and straps at wallmart for like 5 bucks