Push the pin in with an appropriate tool, so it's not inside the outter row of beads anymore. Apply pressure to this outter bead in one direction (if you hold it like in your picture, push it down, for example) while pushing the rest of the bracelet in the other direction. Slowly remove the tool and the spring will snap out of the outter bead. Do the same on the other side. Prepare yourself for a lot of gunk to come out of it. 😁