Submariner Date Ref.116613LN / 116613LB

References 116613LN and 116613LB are Submariners of a combination model called Rolesor by Rolex that was produced between 2009 and 2020 as a successor to Ref.116613.
A two-tone combination of stainless steel and 18K yellow gold is used as the material, and yellow gold is used for the bezel, crown, hands, and the center piece of the bracelet. The bezel has been changed to Rolex's own Cerachrom bezel, engraved with a 60-minute memory with a special yellow gold coating. The color of the dial is black and blue.

Ref.116613LN has a black dial and black bezel and is commonly known as a black sub, and "LN" stands for "Lunette Noir" and means black bezel.

Ref.LN116613LB features a blue dial and blue bezel, and is commonly known as a blue sub, and "LB" stands for "Lunette Bleu" in French, meaning blue bezel. At the beginning of production, the dial was matte, but from around 2013 it was changed to a glossy sunray dial. Among the Rolex Rolesor models, this Ref.116613LB blue sub is particularly popular.