Rolex Submariner 40 mm 16613Z1 Steel/Yellow Gold Blue

The Rolex Submariner is one of the most recognized and enduring dive watches ever made, introduced in 1953 and refined across decades into a benchmark of horological excellence. Within the Submariner family, the two-tone Rolesor references have always commanded particular attention, marrying the rugged sport credentials of the line with the warmth and prestige of yellow gold. Reference 16613Z1 represents this tradition at its most compelling, a 40mm watch built to perform underwater and to impress above it.

The case of the 16613Z1 measures 40mm and is constructed from a combination of Oystersteel and 18k yellow gold, a pairing Rolex calls Rolesor. The crown, bezel, and bracelet center links are rendered in yellow gold while the case flanks and bracelet outer links remain in steel, creating a harmonious two-tone aesthetic that has attracted both watch enthusiasts and style-conscious collectors for decades. The Oyster case is sealed to 300 meters, or 1,000 feet, of water resistance, a specification that underscores its legitimate dive-watch heritage.

The blue dial is a defining visual element of this reference, offering a deep, rich hue that shifts subtly under different lighting conditions. Hour markers and hands finished in yellow gold-tone material complement the dial color and the case construction perfectly, achieving a cohesive, polished appearance. The aluminum blue bezel insert carries the hallmark 60-minute graduated scale that professional divers rely on, and it rotates unidirectionally to prevent accidental extension of dive times.

Powering the 16613Z1 is a self-winding automatic movement, the kind of mechanical reliability that Rolex has refined over generations of manufacture. Although this reference predates some of Rolex's most modern caliber advances, it carries the proven engineering and finishing that the brand is celebrated for worldwide, delivering consistent, dependable timekeeping on the wrist day after day.

On the wrist the 16613Z1 wears with an authority that few dive watches can match. The 40mm diameter is the classic Submariner footprint, sitting proportionately on a wide range of wrist sizes and pairing effortlessly with everything from a wetsuit sleeve to a dress shirt cuff. The Oyster bracelet, with its alternating gold and steel links, adds both comfort and visual weight that signals quality to anyone who notices it.

At Bizak and Co. every pre-owned Rolex offered for sale is certified authentic and inspected before listing. Acquiring a used Rolex Submariner 16613Z1 through Bizak and Co. means buying from a knowledgeable dealer who stands behind every timepiece. Browse our collection at bizakandco.com or contact us directly to ask questions, request additional photographs, or purchase this iconic reference with confidence.