Rolex Deepsea 44 mm 136668LB Yellow Gold Blue

The Rolex Deepsea is the most extreme dive watch in the Oyster Professional family, engineered to withstand pressures at depths of 3,000 meters — a feat that places it in a category essentially its own among production wristwatches. The Deepsea line was conceived as a successor to the legendary Sea-Dweller lineage, scaling up every dimension of that watch's capability to meet the demands of professional saturation divers and deep-sea exploration. Reference 136668LB takes that already remarkable platform and renders it in 18k yellow gold, transforming a purely technical instrument into one of the most coveted luxury dive watches in the world.

At 44mm in diameter, the Deepsea wears with undeniable authority on the wrist. The case is crafted entirely in 18k yellow gold, a material choice that immediately separates this reference from the steel variants and signals it as a collector's piece and a statement of horological ambition. The screw-down crown locks securely into the case, maintaining the hermetic seal that underpins the watch's extraordinary depth rating. Every surface and proportion has been engineered to balance the sheer technical requirements of a 3,000-meter-rated case with a sense of refined presence appropriate to precious metal construction.

The blue dial is among the most immediately compelling design elements of the 136668LB. Rich, vivid, and deep in hue, it creates a striking contrast against the warm tone of the yellow gold case and bracelet. Luminous dial markers ensure legibility in any light condition, from a dimly lit room to the total darkness of depth — a reminder that beneath the luxury exterior, this is a serious professional instrument. The black ceramic unidirectional bezel provides a further visual counterpoint, its matte surface playing beautifully against the polished and brushed gold of the case.

Powering the Deepsea 136668LB is a certified Swiss-tested Rolex automatic movement, regulated to Superlative Chronometer standards. Rolex's in-house movements are among the most rigorously tested in the industry, regulated and certified to a higher precision standard than the Official Swiss Chronometer Testing Institute (COSC) alone requires. The movement is housed within the ring lock system — Rolex's proprietary triple-case architecture that distributes and absorbs the immense hydrostatic pressure at 3,000 meters, a feat of engineering that makes this watch as technically impressive as it is beautiful. The Oyster bracelet in matching 18k yellow gold is fitted with a Folding Oysterlock Safety clasp, providing a secure and comfortable fit for daily wear.

For collectors and enthusiasts alike, the Rolex Deepsea 136668LB in yellow gold represents one of the most compelling references available in the current Rolex catalog — extraordinarily rare in precious metal, deeply desirable by virtue of its blue dial, and backed by the full technical pedigree of the Deepsea line. This example is offered in brand-new, certified authentic condition by Bizak & Co., a trusted luxury watch dealer. Whether you are acquiring it as a wearable heirloom, a cornerstone of a serious Rolex collection, or a considered investment in one of watchmaking's most storied brands, this reference rewards on every level. We invite you to reach out to the Bizak & Co. team to discuss availability, pricing, and purchase options for this exceptional timepiece.