The Rolex 126660 is an impressive model from Rolex's Sea-Dweller collection, specifically designed for deep-sea exploration and professional diving. Launched as part of Rolex’s ongoing commitment to high-performance timepieces, the 126660 represents a significant evolution in the Sea-Dweller series.

With its robust 44mm Oyster case, the 126660 stands out with its substantial size and commanding presence. The case is crafted from Rolex’s proprietary Oystersteel, which is renowned for its corrosion resistance and durability. One of the key features of this model is its impressive water resistance, rated to an astonishing 3,900 meters (12,800 feet), making it a top choice for professional divers.

The watch is distinguished by its unique helium escape valve, positioned at 9 o'clock on the case. This valve is essential for deep-sea diving, as it allows helium gas to escape during decompression, preventing potential damage to the watch's crystal. The 126660 also features a prominent, oversized unidirectional rotating bezel with a Cerachrom insert, which is highly resistant to scratching and fading. The bezel's graduated scale allows divers to accurately track elapsed dive time.

The dial of the 126660 is designed for maximum readability under extreme conditions. This special edition James Cameron model was a and blue dial with large luminescent hour markers and hands that ensure visibility in low-light environments. The green "SEA-DWELLER" text at 6 o'clock is a distinctive design element.

Powering the 126660 is the Rolex Caliber 3235 movement, an advanced automatic movement known for its precision and reliability. This movement features Rolex's latest technology, including a Chronergy escapement that enhances efficiency and extends the power reserve.

The watch is fitted with a robust Oyster bracelet made from Oystersteel, featuring an Oysterlock clasp that ensures a secure fit even in the most challenging conditions. The bracelet also includes Rolex's Glidelock extension system, allowing for easy adjustment to accommodate over a wetsuit.

In summary, the Rolex 126660 Sea-Dweller is a formidable timepiece that combines advanced engineering with a rugged, yet refined design. Its exceptional water resistance, practical features for professional divers, and cutting-edge movement make it a standout choice for those who demand reliability and performance in extreme environments.

This watch has been serviced and is running well. It will come with a one year warranty.