Hello. I own a Portofino Hand-Wound 8 days(510102). I want to change out the strap but I'm not sure if I have the right tool. I have a Bergeon 6767-f springbar tool that I've used a couple times on my Omega bracelet and it works great. I'm trying to use the 6767-f on my Portofino but it doesn't seem to fit right. Should the 6767-f work or do I need a different size tool? I don't want to scratch the lugs or bend the springbar using the wrong size tool.
Thanks,
Pete