This is a genuine IWC Portugieser blue alligator leather watch strap. It measures 18mm at the watch end and 16mm at the buckle end, with the longer strap piece measuring 11.5cm and the shorter strap piece 7.5cm long. This strap is designed to fit some IWC Portugieser models.
Key Features:
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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!