The Rolex Sea‑Dweller Deepsea 126660 is one of the most impressive professional diving watches ever developed by Rolex. This model is designed for extreme conditions and is known for its exceptional water resistance (up to 3900m), robust construction, and advanced technology. With a sturdy case diameter of 44mm and the famous Ringlock System construction and helium escape valve, the Deepsea is built for professional deep-sea diving. The watch is designed to withstand extreme pressure, making it a technical highlight within the Rolex sports collection. Inside, it features the modern Rolex Caliber 3235, a high-quality Rolex Manufacture automatic movement. This movement is known for its excellent accuracy, 70-hour power reserve, and innovative technologies such as the Chronergy escapement. It offers exceptional reliability and performance. This piece from 2019 is in very good, unpolished condition, with the original shapes and finishes of the case fully preserved. In March 2025, the watch underwent an official service by Rolex, which further emphasizes its excellent technical condition and reliability. The watch is delivered as a complete full set, including: - Original Rolex box and outer box - Rolex warranty card (2019) - Hangtag - Rolex booklets - Extra link for the Oyster band (fits wrists up to 20cm/22cm with dive extension) - Rolex Service Card (warranty valid until 03-2027) - Our warranty report An impressive professional diving watch from Rolex, technically advanced and built for extreme conditions. Thanks to the recent Rolex service and the complete set, this is a very attractive example of the legendary Deepsea.