I have a three older Elgin 15j pocket watches (pre-1925) that I'm trying to restore. Each of the base plates has one or more damaged jewels. I think I can find replacement jewels from Otto Frei here in the US, but don't own a jewel press (Seitz?). Are these presses the only way to extract/insert friction fitted jewels? I do own a complete staking set but figured I better ask before breaking out my brass hammer.... Thanks