I have had several questions about the bezel. I do not know what or where it is from, it fits exactly like an original with the octagonal shaped snap ring inside. Again, there are no modifications to the crystal ring or the case.The item "Antique Old Vintage Rolex Submariner 6536 6536/1 Diving Wristwatch Chronometer" is in sale since Wednesday, November 4, 2020. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "pwkid" and is located in Hensley, Arkansas. This item can be shipped to United States.