Rolex DeepSea Sea-Dweller 12800ft. In Superalloy 904L Stainless Steel with Monobloc Middle Case with Screw-Down Case Back and Winding Crown Featuring Rolex’s Unique Ringlock System Case Architecture with Helium Escape Valve, Case Back in Grade 5 Titanium, Unidirectional Rotatable 60-Minute Graduated Scratch-Resistant Cerachrom Bezel with Insert in Ceramic and Numerals and Graduations Coated in Platinum, Black Dial with Luminescent Hour Markers and Hands, Screw-Down Crown with Triplock Triple Waterproofness System, Updated Rolex Manufacture Calibre 3235 Perpetual Mechanical Self-Winding Automatic Movement with Paramagnetic Blue Parachrom Hairspring Oscillator, 904L Stainless Steel Oysterlock Bracelet with Rolex Glidelock Extension System & Fliplock Extension Link.

The 44mm diameter solid three-body case, bracelet, curved lugs, and flat angled bezel are polished/brushed. The unidirectional rotating graduated 60-minute bezel has a black Cerachrom insert with Arabic numeral markers every ten minutes, and a knurled edge. The graduation scale is coated in PVD (Physical Vapor Deposition), with a thin layer of platinum. The dial is black with rimmed luminous Chromalight dot, baton, and triangular hour markers that emit a long-lasting blue glow for legibility in dark dives. It has Rolex baton hands with luminous Chromalight inserts, a center sweep seconds hand with a luminous dot indicator, and around the perimeter is a white minute/seconds track. The date aperture window is at 3 o’clock. It has a Certified Official Superlative Chronometer (COSC) rating, and there is a 70-hour power reserve at full wind. It’s water resistant to 3900 meters/12,800 feet. The 17.8mm thick case, dial, and movement are all signed. 

This Rolex Sea Dweller Deep Sea 126660 has a mechanical automatic self-winding Rolex "Chronergy" caliber 3235 movement. It’s rhodium plated with fausses cotes embellishment, and the new Chronergy high-energy escapement is made of anti-magnetic nickel-phosphorus. There is an optimized blue Parachrom hairspring connected to the oscillator, a Rolex overcoil, and a monometallic anti-magnetic balance adjusted for temperature and 5 positions. It has a stop-seconds function for precision time setting, and high-performance Paraflex shock absorbers. The mechanism oscillates at a frequency of 28,800 vph (4 Hz); the 3235 movement has 14 new patents. 
 

Reference No. 126660