Gold Rolex watches possess a truly captivating radiance, born of years of experience in perfecting the use of this most precious of metals. The calibre 2236 is a new-generation self-winding mechanical movement entirely developed and manufactured by Rolex. To preserve the beauty of its pink gold watches, Rolex created and patented an exclusive 18 ct pink gold alloy cast in its own foundry: Everose gold. Introduced in 2005, 18 ct Everose is used on all Rolex models in pink gold.