The Rolex Submariner Date 116613LN is the modern two-tone Yellow Rolesor Submariner that arrived in 2010 as the ceramic-bezel successor to the 16613, and this 2015 example sits in the heart of the reference's 2010–2020 production run. The 116613LN was the first two-tone Submariner Date to be fitted with the black Cerachrom ceramic bezel — a virtually scratchproof and color-stable upgrade over the prior aluminum bezel insert that defined the prior 16613 generation. Construction is Oystersteel and 18k yellow gold across the 40mm Oyster case and the matching two-tone Oyster bracelet with Glidelock clasp and 5mm Easylink extension. The black dial carries applied 18k yellow gold hour markers, Mercedes hands with Chromalight luminescence that glows long-duration blue, and the cyclops-magnified date at 3 o'clock. Powered by the in-house Rolex Caliber 3135 self-winding chronometer movement, the 116613LN beats at 28,800 vibrations per hour, delivers a 48-hour power reserve, and carries Superlative Chronometer certification. The unidirectional rotating ceramic bezel with 18k yellow gold 60-minute graduations, screw-down Triplock crown, and 300-meter water resistance preserve the watch's credentials as a true dive watch. Full set includes Rolex box and papers. Pre-owned, 2015 production.