This authentic IWC Portofino dark brown alligator leather watch strap was made in collaboration with Santoni. It will fit some IWC Portofino models. The strap is crown-stamped on the underside and has batch number A54579 stamped.
This strap is in worn condition and I have given you clear images of the strap from multiple angles to help you assess the condition before ordering. The strap in the photos is the exact strap you will receive.
If you are not sure if this will fit your watch or if you have any other questions, feel free to email me at Sales@TheWatchLink.co.uk. I'm happy to help!