Rolex Submariner Date 126613LB: A Buyer’s Guide to the Blue Yellow Rolesor Submariner

The Rolex Submariner Date reference 126613LB is one of the easiest modern Rolex watches to recognize—and one of the easiest to describe incorrectly. Its combination is specific: a 41 mm Oyster case, Oystersteel and yellow gold construction, a royal-blue dial, a blue Cerachrom bezel insert, a date display with Cyclops lens, and an Oyster bracelet.

That exact configuration matters. A seller may call several different watches a “blue two-tone Submariner,” but the reference number, case size, movement, dial, bezel, and bracelet should all agree before a buyer treats the listing as a 126613LB.

The modern 41 mm generation

Rolex introduced the new-generation Submariner line in 2020 with a redesigned, slightly larger 41 mm case and a remodelled bracelet. Within that generation, the 126613LB is the blue Yellow Rolesor Submariner Date.

Rolex uses “Yellow Rolesor” for its combination of Oystersteel and yellow gold. On this reference, the blue color is not limited to one component: the watch has both a royal-blue dial and a blue ceramic Cerachrom bezel insert. The bezel’s recessed numerals and graduations are coated in gold.

As checked on September 5, 2026, Rolex’s United States product page lists the 126613LB at $19,450 USD. That is the manufacturer’s listed price on that date, not a statement of secondary-market value or an offer to buy or sell the watch.

Photo credit: © Rolex; courtesy Juwelier Rüschenbeck, Official Rolex Retailer — Source: https://www.rueschenbeck.de/rolex-submariner-date-m126613lb-0002

A dive-watch layout with a dressier presence

Under the gold-and-blue presentation, the 126613LB retains the functional architecture of the Submariner Date. Its bezel rotates in one direction and carries a 60-minute scale for monitoring elapsed dive time. Rolex describes the ceramic insert as corrosion resistant and virtually scratchproof, and the zero marker contains a luminous capsule.

The royal-blue dial uses Chromalight on the hour markers and hands. Rolex specifies long-lasting blue luminescence, with broad hands and simple marker shapes designed for clear reading in low-light conditions.

The Oyster case uses a screw-down case back and a screw-down Triplock crown. Rolex rates the watch waterproof to 300 metres / 1,000 feet. That factory rating describes the model’s design. A pre-owned example should still receive an appropriate pressure test before anyone relies on it in water, especially when its service history is incomplete.

Calibre 3235 and the date display

Photo credit: © Rolex; courtesy Juwelier Rüschenbeck, Official Rolex Retailer — Source: https://www.rueschenbeck.de/rolex-submariner-date-m126613lb-0002

The 126613LB is powered by Rolex manufacture calibre 3235, a self-winding mechanical movement. Rolex specifies approximately 70 hours of power reserve and precision of -2/+2 seconds per day after casing under its Superlative Chronometer certification.

The movement provides centre hours, minutes and seconds, an instantaneous date with rapid setting, and stop-seconds for precise time setting. The date sits at 3 o’clock beneath a Cyclops magnifying lens. Rolex also specifies a blue Parachrom hairspring and Paraflex shock absorbers.

Those are manufacturer specifications for the reference. They are not a substitute for checking the actual watch. Timing performance, winding behavior, date change, crown operation, and power reserve should be evaluated on the individual example being offered.

Bracelet and fit

The three-piece solid-link Oyster bracelet continues the Yellow Rolesor combination of Oystersteel and yellow gold. It uses a folding Oysterlock safety clasp and Rolex’s Glidelock extension system.

Glidelock allows fine bracelet adjustment without tools. That feature matters beyond diving: a heavy 41 mm watch can feel substantially better when the bracelet is adjusted accurately. A buyer should confirm that the clasp closes securely, the Glidelock moves properly, and the bracelet includes enough links for the intended wrist.

Photo credit: © Rolex; courtesy Juwelier Rüschenbeck, Official Rolex Retailer — Source: https://www.rueschenbeck.de/rolex-submariner-date-m126613lb-0002

What to verify before buying

Start with the reference and the physical configuration. For a 126613LB, the watch, warranty card, seller’s description, and photographs should consistently identify the blue 41 mm Yellow Rolesor Submariner Date. If a listing combines another reference number with 126613LB photographs or specifications, stop and resolve the inconsistency.

Review clear photographs of the dial, bezel, rehaut, case sides, crown, case back, bracelet, clasp, and included accessories. Keep any full serial-number photograph private. Public listing photos should conceal enough of the serial to protect the owner while allowing confidential verification during the transaction.

Ask about service history, accuracy, water-resistance testing, polishing, replacement parts, bracelet links, warranty card, box, and accessories. None of those items alone proves authenticity, and missing accessories do not automatically make a watch illegitimate. The complete set of evidence—and an inspection by a qualified professional—matters.

Finally, separate the watch’s official retail price from its actual transaction value. Condition, age, completeness, service history, geographic market, seller reputation, and current supply all influence what a particular example may be worth.

Photo credit: © Rolex; courtesy Juwelier Rüschenbeck, Official Rolex Retailer — Source: https://www.rueschenbeck.de/rolex-submariner-date-m126613lb-0002

The Rallo view

The 126613LB succeeds because it carries two personalities without abandoning either one. The blue dial and yellow gold give it unmistakable presence, while its 300-metre rating, unidirectional bezel, Triplock crown, Glidelock clasp, and calibre 3235 keep the foundation firmly tied to the modern Submariner.

For a buyer, the best approach is simple: identify the reference precisely, verify the actual watch rather than the nickname, and judge the individual example on condition, documentation, and inspection.

Sources reviewed

Rolex official product page for the Submariner Date reference 126613LB, Rolex’s 2020 Submariner launch brochure, and the official Rolex model brochure for this reference.