Rolex Deepsea · Reference 126660
Rolex Deepsea 126660
Known as Deepsea (second generation); the D-Blue dial version is the James Cameron
The Sea-Dweller Deepsea reference 126660 is the deep-diving anchor of the Rolex catalog, a 44mm Oystersteel case rated to 3,900 meters of water resistance, which is 12,800 feet. Rolex introduced it at Baselworld 2018 as the update to the 116660, and the changes were mechanical and structural rather than cosmetic. Inside went the caliber 3235, Rolex's then-new movement with the Chronergy escapement and a 70-hour power reserve. The case picked up a wider 22mm bracelet and reworked lugs that sit better on the wrist than the older 21mm setup. What did not change is the reason this watch exists: the patented Ringlock System, a load-bearing architecture that lets a wristwatch survive pressure that would crush most dive watches. There are two dials on the 126660. The straight black dial, and the gradient D-Blue that fades from Caribbean blue at the top to black at the bottom, created with James Cameron to mark his 2012 solo dive to the Mariana Trench in the Deepsea Challenger. Collectors call the blue one the James Cameron and it is the one most people walk in asking for.
Produced: 2018 to 2022. The 126660 replaced the first-generation 116660 in 2018 and was itself superseded in 2022 by the 136660, which added a slightly larger date window, a slimmer bezel profile, and dropped the Fliplock diver's extension. Both references share the caliber 3235.
Specifications
- Reference
- 126660
- Collection
- Sea-Dweller Deepsea
- Case Diameter
- 44mm
- Case Thickness
- approximately 18mm
- Lug To Lug
- roughly 51mm
- Case Material
- Oystersteel (904L-type stainless steel)
- Ringlock System
- Patented Ringlock System: a nitrogen-alloyed high-strength steel compression ring inside the case carries the pressure load, working with the crystal and caseback
- Inner Caseback
- Solid caseback in grade 5 titanium
- Outer Caseback Ring
- Screw-down Oystersteel ring
- Crystal
- Domed sapphire, approximately 5.5mm thick
- Bezel
- Unidirectional rotatable 60-minute bezel with black Cerachrom (ceramic) insert
- Water Resistance
- 3,900 meters / 12,800 feet
- Helium Escape Valve
- Yes, one-way gas escape valve for saturation diving
- Movement
- Rolex caliber 3235, in-house automatic
- Escapement
- Chronergy escapement, paramagnetic nickel-phosphorus
- Power Reserve
- approximately 70 hours
- Frequency
- 28,800 vph (4 Hz)
- Hairspring
- Blue Parachrom (paramagnetic)
- Accuracy
- Superlative Chronometer, officially certified (COSC plus Rolex in-house), minus 2 to plus 2 seconds per day
- Dial Options
- Black lacquer or D-Blue gradient (Caribbean blue to black)
- Luminescence
- Chromalight, blue glow
- Bracelet
- Oyster, three-piece solid links, 22mm width, Oystersteel
- Clasp
- Oysterlock safety clasp with Rolex Glidelock fine adjustment and Fliplock diver's extension link
- Date Function
- Cyclops date at 3 o'clock
- Year Introduced
- 2018
- Successor
- 136660 (introduced 2022)
Market & Value
This is a watch we buy and sell every week, so here is how the money actually moves. Pre-owned 126660 black dials generally trade in the low-to-mid teens; D-Blue James Cameron examples run higher, commonly landing between $14,000 and $17,500 depending on condition, box, papers, and whether the full expedition literature is present. The blue dial carries a consistent premium over the black, usually a few hundred to around a thousand dollars, purely because more buyers ask for it by name. Unworn full-set pieces with factory stickers and complete accessories sit at the top of the range. Understand the context: the current 136660 exists and retails new around $15,550 for the black dial when you can get one at a boutique, so the discontinued 126660 lives in the shadow of a nearly identical successor. That keeps a lid on runaway appreciation. The 126660 has been roughly flat to modestly up over the past year, and it is not a watch we would call a fast mover on the upside. If you own one, it holds real value; if you are buying, you are buying it to wear a serious dive watch, not to flip it next quarter.
What to Know Before You Buy
A few things that matter when you put one on the counter. First, this is a genuinely large and thick watch. At 44mm across, roughly 18mm thick, and heavy in all-steel, it wears big; the reworked lugs on the 126660 help it sit better than the 116660, but small wrists should try before buying. Second, the D-Blue and the black are mechanically identical, so pay only for the dial you actually want; do not overpay for blue if you prefer black. Third, watch out for listings that call the 126660 a titanium watch. The case and bracelet are Oystersteel. Only the inner caseback is grade 5 titanium, and the fully titanium model is the separate Deepsea Challenge, not this reference. Fourth, condition on the bracelet and clasp is where value lives: the Glidelock and Fliplock system should operate cleanly, and a stretched or heavily polished bracelet costs real money. Fifth, box, papers, and the expedition hang tags help resale, especially on the James Cameron. On authenticity, check the caliber 3235 date and 70-hour reserve behavior, the Cerachrom bezel action, the laser-etched crown at six o'clock under the crystal, and serial and reference engravings between the lugs.
Rolex Rolex Deepsea Encyclopedia
Read the full guide →Buying or selling a 126660?
Ultimate Watch buys and sells the Deepsea 126660, both the black dial and the D-Blue James Cameron, at our counter at 19 West 47th Street in New York. We have been on this block since 1959, and we write checks for watches like this every week, so you get a real number, not a chart quote. If you are selling, bring it in with whatever box and papers you have and we will make you a firm offer on the spot. If you are buying, tell us black or blue and the condition you want, and we will source it. Call us or stop by the store, or request an offer and we will get back to you fast.