Rolex Submariner Date 40 mm 116618LB1 Yellow Gold Blue

The Rolex Submariner Date 116618LB1 is among the most prestigious references in the Submariner family — a 40mm dive watch rendered entirely in 18k yellow gold and finished with a striking blue ceramic bezel and matching blue dial. The Submariner, introduced by Rolex in 1953, pioneered the modern dive watch and remains the archetype against which all others are measured. Within that storied lineage, the all-gold Submariner represents the pinnacle: a tool watch elevated to a jewel, equally at home on the wrist of a deep-sea diver or at a black-tie affair.

The 116618LB1 designation tells an informed buyer everything essential. The 116618 base reference identifies the 40mm yellow gold Submariner Date, while the LB suffix confirms the blue dial and blue bezel combination — as opposed to the LN, which carries a black dial and black bezel. That blue-on-gold pairing is widely regarded as one of Rolex's most harmonious color stories, the warm luster of the yellow gold case and Oyster bracelet playing beautifully against the cool, deep-blue ceramic bezel insert and sunburst-finished blue dial.

The bezel itself is fitted with Rolex's proprietary Cerachrom ceramic insert, virtually impervious to scratching and ultraviolet-resistant so the color remains true over decades of wear. The graduated-blue dial carries applied yellow gold hour markers and Mercedes hands with luminescent fill, ensuring legibility in low-light and underwater conditions. The date aperture at 3 o'clock is magnified by the signature Cyclops lens — a detail that has defined the Submariner Date since its earliest iterations.

Powering the watch is a Rolex-certified automatic movement, a self-winding caliber that meets the brand's Superlative Chronometer standard — a designation Rolex introduced to describe movements chronometrically certified to a tighter tolerance than the official COSC benchmark. The Oyster case is rated to 300 meters (1,000 feet) of water resistance, sealed by a screw-down Triplock crown and solid case back, making this gold Submariner a genuinely functional diver despite its precious-metal construction.

The Oyster bracelet in 18k yellow gold completes the look with solidity and finish quality that only becomes apparent when you hold it. The Oyster's flat three-piece links and Oysterlock folding clasp with Easylink comfort extension provide a secure, adjustable fit. Wearing a full yellow-gold Rolex Submariner is a distinct experience — substantial, warm, and unambiguous in its intent.

This certified authentic pre-owned Rolex Submariner Date 116618LB1 is available now at Bizak & Co. Pre-owned is the smart way to acquire a reference of this caliber: the premium over stainless steel is significant even at retail, and buying pre-owned from a trusted dealer means you receive a thoroughly vetted, authentic timepiece without the new-retail markup. Bizak & Co. specializes in luxury pre-owned watches and stands behind every piece it sells. Reach out today to learn more, ask questions, or purchase this yellow gold blue Submariner online.