• Coating Type: Typically, a technique called PVD (Physical Vapor Deposition) is used. This is an advanced coating process that makes the gold color adhere strongly to the metal, making it resistant to scratches and discoloration for a very long time compared to traditional plating. • Base Metal: It is stainless steel (316L), which is the preferred metal in watchmaking for its extreme durability, resistance to rust, and hypoallergenic properties. #BoughtIt 4 days ago and it comes with a lifetime warranty No lowball offers please