Rolex Reference 16520 'Zenith' Daytona | A stainless steel automatic chronograph wristwatch with bracelet, Circa 1997 | 勞力士 型號 16520 'Zenith' Daytona 精鋼自動上鏈計時鍊帶腕錶，製作年份約 1997

Rolex

Reference 16520 'Zenith' Daytona
A stainless steel automatic chronograph wristwatch with bracelet, Circa 1997

勞力士 型號 16520 'Zenith' Daytona
精鋼自動上鏈計時鍊帶腕錶，製作年份約 1997

Dial: white
Caliber: cal. 4030 automatic, 31 jewels
Case: stainless steel, screw down case back
Case number: U'447'316
Closure: stainless steel Rolex Oyster bracelet with twin lock folding buckle
Size: 40 mm diameter, bracelet circumference is approximately 200 mm
Signed: case, dial and movement
Box: yes
Papers: no
Accessories: Rolex presentation box with outer packaging, and booklets

Condition Report:
Case: The case in overall good condition with signs of wear and small nicks throughout. The bracelet with minor stretch and has surface scuffing and wear throughout.

Dial: The dial is in overall excellent condition.

Movement: All functions operating. The movement is running at time of cataloging, however it was not tested for the accuracy of time or duration of the power reserve and may need service at the buyer's discretion. Please note that Sotheby's does not guarantee the future working of the movement.

Catalogue Note:
The Rolex reference 16520 'Zenith' Daytona was in production from 1988 until 2000. It was Rolex's first automatic chronograph, the first to be housed in the new legendary 40 mm case, and featured a heavily modified Zenith El Primero movement, hence the moniker. Over the 12 years of its lifetime, the Zenith Daytona underwent a few changes including five versions or 'marks' of the dial. The last transformation included the introduction of the luminova in 1998, and a new bracelet design. This present watch, made in 1997, as the serial number suggests, has a Mark IV dial which was the last dial to have tritium luminous markers. Reference 16520 have long been of keen interest to collectors, especially because it represents both the new and old era of the Cosmograph Daytona lineage as it was the first automatic movement they ever made, and was the last outsourced movement to be featured in a Rolex case.