Historical Context

The Sea-Dweller Legacy:

• The Rolex Sea-Dweller debuted in 1967 with the 1665 "Double Red", designed for deep-sea divers and featuring a helium escape valve (HEV) to prevent crystal damage during decompression.

• Over the years, the Sea-Dweller evolved with models like the 16600 and 116600, retaining its position as a technical tool watch for extreme underwater exploration.

Commemoration of 50 Years:

• In 2017, Rolex introduced the 126600 to celebrate 50 years of the Sea-Dweller. It was the first major redesign of the model in several years, incorporating key updates to appeal to both professional divers and modern luxury watch enthusiasts.

Key Features of the Rolex 126600

Case:

• Size: The 43 mm case made the 126600 the largest standard Sea-Dweller at the time of its release, offering greater wrist presence than the traditional 40 mm Sea-Dwellers.

• Depth Rating: Water-resistant to 1,220 meters (4,000 feet), it maintained the professional-grade specifications expected of the Sea-Dweller series.

• Helium Escape Valve: The signature HEV remained a critical feature, allowing helium gas to escape during decompression.

Dial:

• The "Single Red" lettering on the dial—reading "Sea-Dweller" in red—was a nod to the original 1665 "Double Red" Sea-Dweller from the 1960s and 1970s, adding vintage-inspired charm.

• Cyclops Lens: For the first time in the Sea-Dweller’s history, Rolex added a Cyclops lens over the date window, a feature traditionally absent from the model. This decision sparked debate among purists but expanded the watch's usability for everyday wear.

Bezel:

• Made from Cerachrom ceramic, the unidirectional rotating bezel is highly resistant to scratches and fading.

• Features a 60-minute graduated scale for tracking dive times.

Movement:

• Powered by the Caliber 3235, Rolex’s cutting-edge movement featuring the Chronergy escapement.

• Offers a 70-hour power reserve, improved precision, and resistance to shocks and magnetic fields.

Bracelet:

• Equipped with the robust Oyster bracelet, featuring the Glidelock extension system and a Fliplock extension link, allowing the watch to be worn comfortably over a wetsuit.

Collectability

• Red Text Appeal: The single red "Sea-Dweller" text is a unique feature, distinguishing the 126600 from other Sea-Dweller models and enhancing its collectability.

• Firsts and Innovations: As the first Sea-Dweller to feature a 43 mm case and Cyclops lens, it represents a significant milestone in the model's evolution.

Model Specifics

Complete with box, bezel protector, booklet, and open warranty card. Warranty card has neither a date, nor a name filled out.