The title is slightly misleading. The Rolex reference 16520 is *not* a Submariner; it's a Daytona chronograph. There is no Rolex Submariner with that reference number. This article will therefore focus on the Rolex Daytona reference 16520, exploring its history, design, variations, collectibility, and current market value.
The Rolex Daytona reference 16520 represents a pivotal moment in the history of this iconic chronograph. Produced from 1988 to 2000, it marked the transition from the Zenith-powered El Primero movement to Rolex's in-house calibre 4030. This shift significantly impacted the watch's performance, reliability, and ultimately, its desirability among collectors. To mark the introduction of the second generation of the Daytona, Rolex gave their chronograph a facelift to match its brand-new movement. While still recognizably a Daytona, subtle yet significant changes distinguished the 16520 from its predecessors.
The Zenith Era and the Transition to Calibre 4030:
Before the 16520, the Rolex Daytona utilized the Zenith El Primero movement, a highly regarded chronograph movement known for its high beat rate (36,000 vph). However, this collaboration wasn't without its challenges. The El Primero, with its complex architecture, posed some manufacturing hurdles for Rolex, and the partnership ultimately ended. The 16520 marked the beginning of Rolex's complete control over its Daytona production, with the introduction of the in-house calibre 4030. This automatic chronograph movement, while not boasting the high beat rate of the El Primero, offered improved reliability and longevity, hallmarks of Rolex's reputation for robust timekeeping.
The switch to the 4030 also influenced the design of the 16520. The dial layout subtly changed, reflecting the different functional requirements of the new movement. While the overall aesthetic remained consistent with the classic Daytona design, keen observers could detect these differences.
Design and Variations of the Rolex Daytona 16520:
The 16520 is instantly recognizable as a Daytona, with its classic tachymeter bezel, three chronograph subdials, and the signature Rolex crown. However, several variations exist within the 16520 reference, adding to its complexity and appeal for collectors. These variations primarily relate to the dial and bezel materials:
* Dial Variations: The most common dial variations are the black, white, and champagne dials. Each offers a distinct aesthetic, with the black dial often considered the most versatile and popular. Subtle differences in the font style and the placement of the indices also exist across production years. Some early examples feature a slightly different font on the subdials, while later models have refined details.
* Bezel Variations: The bezels are typically made of either stainless steel or 18k gold. The stainless steel bezels are more common, while gold bezels are rarer and therefore more valuable. The condition of the bezel is also crucial for determining value, with scratches and wear significantly impacting a watch's price.
* Case Material: The 16520 Daytona was predominantly produced in stainless steel. While less common, some examples exist in precious metals, further enhancing their rarity and value.
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