Underwater Diver|Sinn Dive Observe 40mm|Sapphire Crystal Dial Window:Experience top-quality clarity having a sapphire crystal dial window, proof against scratches and perfect for underwater use. 20Bar Water Resistance:Dive with self-assurance nearly 20Bar, ensuring your observe withstands the depths with the ocean. Computerized Self-Wind Motion:Stay powered using an automated self-win... https://s.click.aliexpress.com/e/_DmDJRIL