This is a Rolex Submariner Date 116613LB — the “Bluesy”. The watch features a 40 mm Oyster case crafted from a mix of stainless steel and 18k yellow gold in Rolex’s two-tone “Yellow Rolesor”. The blue sunburst dial (known as “Bluesy”) pairs with a unidirectional blue Cerachrom ceramic bezel, both offering strong legibility with gold-rimmed luminous hour markers, Mercedes-style hands, and a magnified date window at 3 o’clock (Cyclops lens). It houses Rolex’s automatic Calibre 3135 movement, with approximately 48-hour power reserve, sapphire crystal, Triplock screw-down crown, Glidelock Oyster bracelet, and 300 metre (1,000 feet) water resistance. This example is from 2019, in mint condition, offered as a full set with both tags, original booklets, warranty card, and box. The watch wears solidly yet comfortably on most wrists thanks to its balanced 40 mm case and solid-link bracelet with Glidelock adjustment. It presents no visible wear or ageing, preserving its factory finish and sharp contrast between steel and gold. Signature traits include the vibrant blue sunburst dial under a scratch-resistant sapphire crystal and the ceramic bezel insert, both retaining their original colour and sheen.