The Vintage Omega Calibre 1365 quartz wristwatch 191.0077.1 case back steel is a high-quality stainless steel case back designed specifically for Omega Seamaster models. Made in Switzerland, this silver-coloured component embodies the precision and craftsmanship that Omega is known for. As a genuine Omega part, it ensures a perfect fit and reliable performance for your watch, making it a valuable addition to any watch enthusiast's collection.