The Rolex Sea-Dweller reference 126600-0002, introduced to celebrate the model’s 50th anniversary, is a professional-grade diver’s timepiece featuring a 43mm Oystersteel case. This model marked a significant evolution in the collection by increasing the case diameter from 40mm and adding a Cyclops magnification lens over the date window at 3 o’clock. The watch is defined by its intense black gloss dial with the Sea-Dweller name printed in red, a historical nod to the original 1967 reference. It is equipped with a unidirectional rotatable bezel containing a black Cerachrom ceramic insert with a 60-minute scale and a helium escape valve integrated into the side of the case, allowing it to maintain a water resistance rating of 1,220 meters.
Internally, the watch is powered by the Rolex caliber 3235, a self-winding mechanical movement that offers a power reserve of approximately 70 hours. This movement incorporates the Chronergy escapement for enhanced energy efficiency and a blue Parachrom hairspring for resistance to shocks and magnetic fields. The timepiece is paired with a three-link Oyster bracelet that includes an Oysterlock safety clasp and the Glidelock extension system, which allows for fine adjustments of the bracelet length without tools to fit over a diving suit.
General reviews of the 126600-0002 often praise its enhanced wrist presence and improved proportions compared to previous 40mm iterations. While the addition of the Cyclops lens was initially controversial among purists, it is widely appreciated for improving legibility. Collectors and enthusiasts frequently highlight the red text on the dial as a desirable aesthetic touch. Critics sometimes note the watch’s significant weight and thickness, which may be less suitable for smaller wrists, but overall it is regarded as a robust and highly capable tool watch that bridges the gap between the Submariner and the Deepsea.