Vacheron Constantin 4520v dark blue rubber strap
 

Selling an unworn dark blue rubber strap from model 4520v

It will fit the 4500v as long as you have the correct deployant

From pictures it should fit the 5520v as well, I can do exact measures if you want to try it on the chrono

300 USD

https://ibb.co/tTgDrT5z
https://ibb.co/1YNrPsQ8