Product Details

Vintage Rolex Daytona Zenith watch ref 16520 (1991)

Vintage Rolex Daytona ref 16520 manufactured in 1991.
This stunning Rolex Daytona is true conversation piece with its dials inner sub registers with the inverted Six subdial.  It also is powered by Powerhorse Zenith El Primero 400 movement renamed the Rolex Calibre 4030.
Rolex made many modifications to the El Primero movement. The most important are to reduce the balance oscillation from 36,000 beats per hour to 28,800, thus reducing the frequency from 5 Hz to 4 HZ, a Breguet balance spring was added. A Glucydur balance and Microstella fine adjustment. This is a column wheel chronograph.
The case serial number is X977776 which dates the watch to 1991.
This Vintage Rolex Daytona Sports watch has a very rare inverted Six dial Daytona dial (sub dial).This Rolex Daytona was purchased from its original owner and has only been serviced and lightly polished to remove surface scratches.
All photographs are of the Actual watch which have not been edited in any way.
The watch was serviced by our very own Rolex trained service technician using only Rolex original parts. The zenith cal 4030 automatic movement has been stripped, ultra sonic chemically cleaned and then oiled and re-built. Grade A++ service.
This watch is sold with a 2 year guarantee.
All of our watches can be viewed before purchasing from our West London workshop.
Please call us on 0208-579-9940 to arrange an appointment.

We look forward to meeting you.  

  • Brand:
  • Rolex
  • Type:
  • 18
  • Model:
  • 16520
  • Display Type:
  • Analogue
  • Year of manufacture:
  • 1991
  • Casing:
  • Stainless Steel
  • Features and Functions:
  • Chronograph
  • Watchband:
  • Stainless Steel
  • Condition:
  • Used
  • Condition:
  • Mens
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