Rolex

The year 1988 marked the end of the famous four-digit Daytona references. That same year, Rolex announced the new generation of Daytona models at the Baselworld International Watch Show. From a technical standpoint, this represented a major milestone for the Manufacture, as the new chronograph introduced significant advancements over its legendary predecessor. It was powered by a modified Zenith El Primero movement known as the Caliber 4030, making it the first automatic movement ever housed in a Daytona. The Caliber 4030 would also become the last outsourced movement used by Rolex before the brand’s complete transition to in-house chronograph calibers, a fact that has made the “Zenith Daytona” highly coveted among collectors. The model debuted in three references: 16520 (stainless steel), 16523 (gold and steel), and 16528 (yellow gold)—the latter being the example offered here.

Produced from 1988 to 2000, the Zenith Daytona underwent five distinct evolutions as Rolex continuously refined its design. The present example, dating to circa 1989 and bearing an L serial, is among the rare and highly sought-after early Zenith Daytonas. Early “L” series examples feature a 4-liner dial with a MK I bezel calibrated to 200 units per hour, while a very short run introduced the MK II bezel—like the one on this watch—where the scale was modified to 400 units per hour and the “Units per Hour” marking was relocated to the 1 o’clock position.

We are pleased to offer this example in well-preserved condition, complete with its original accessories.