The Vintage R/T 5517 mil sub bezel in black is a genuine Rolex part specifically designed for the Rolex Submariner model. Made in the United Kingdom, this bezel is 36.5mm in diameter and 30.2mm in height, providing a perfect fit for the iconic timepiece. The sleek black colour adds a touch of sophistication to the watch, making it a stylish and classic accessory for any Rolex enthusiast.