Vintage Omega Seamaster 600

Hi, I’m new to the forum but wondered if someone could help, possibly Point me in the right direction my vintage Sea Master 600 is missing the movement clamp. I recently purchased it upon opening back And removing the movement I’d rather stupidly seem to have mislaid one of the clamps schoolboy error but I have to take ownership so I’m seeking a replacement and I wonder if anybody could point me in the right direction.

Many thanks, all sorted.