Rolex Oyster Perpetual Cosmograph
Daytona Sport Chronograph Ref. 16523
Overhaul and Detailing Project

Rolex Daytona, when fashion, design, and performance go hand in hand

Rolex Daytona Two Tone Cosmograph watch repair

This popular and highly desirable chronograph watch is made of stainless steel and yellow gold with an Oyster band. It comes with a 40mm case, white dial with gold markers and bezel, and a sapphire crystal. The Rolex Daytona was introduced in 1963 to accommodate the high demand for professional racing drivers and almost 60 years after its launch, it is still as modern and iconic as in its first-day view, an attractive watch no doubt.
This specific watch is powered by a Zenith El Primero, caliber 4030 automatic self-winding movement.


It is always a great privilege to work on such a beautiful and sought-after watch.


Gray and Sons received the watch from a collector that wanted to make sure we were going to follow manufacturers’ protocols to keep this watch 100% original and protect its present and future value.

Our Swiss-Trained watchmakers took the job with great passion, as usual, as we love the intricate movements of a chronograph and appreciate the watch enthusiasts that wear them.

A watch like this is a source of infinite pleasure and is always a conversation piece as it does not go unnoticed; it is highly recognizable and appreciated.
Rolex Daytona Two Tone Cosmograph watch repair

At Gray & Sons, we make it personal to bring every timepiece back to its original splendor.

Rolex Daytona Two Tone Cosmograph watch repair

So the process begins, the movement is removed. Case, bracelet, and buckle are sent to one of our highly specialized watch polishers to detail and buff up the stainless steel and gold to its original beauty, which requires a very clear understanding of the job to be done with each timepiece, to make sure that each part of the watch continues to be as original as designed: in this case, satin and shiny stainless steel and shiny yellow gold.



Meanwhile, our watchmaker had disassembled the movement to the barest parts. Cleaning the parts using a multi-stage process to remove dirt and old dried lubricants to bring this great movement back to its best performance.
This process takes approximately 9 to 10 working days to be achieved as no shortcuts are used, we, at Gray & Sons, only do this the old fashioned way of the antique watchmakers. The movement is put together again to start working on the regulation, timekeeping accuracy, power reserve, chronograph functions, and synchronization of all the parts involved for this magnificent movement to keep time, this new process taking 10 days.

Rolex Daytona Two Tone Cosmograph watch repair
Rolex Daytona Two Tone Cosmograph watch repair

Then the watch will be re-cased, and for the final checks, two specialists will test the power reserve of the movement manually, then check the power reserve using mechanical wheels for timekeeping and winding, finally pressure testing machines to check for leaks on the seals and gaskets, this will take another 10 days. The watch is almost ready to be shipped back and as a final stage, we will have another associate check everything all over again with new eyes and have these final tests done again before we ship it back to the owner.

A brief story about Gray & Sons Inspired Jewelers and Watch Experts

Rolex Daytona Two Tone Cosmograph watch repair

For over 40 years, the focus of this family-owned and operated business has been selling meticulously restored & like-new condition Certified Preowned Watches and one-of-a-kind estate jewelry pieces.

We are always acquiring new watches and jewelry pieces, so please check our website frequently or sign up for our free monthly catalog, it will give you a good sense of market values and what is trending in our industry and it's free!! If you have an item that you are interested in selling, we can help sell your piece too! We have sales specialists that are fluent in Spanish, French, Polish, and Russian.

We have six in-house Swiss-trained watchmakers with over 150 years of combined experience to handle all your watch repairs and service issues.

Rolex Daytona Two Tone Cosmograph watch repair

If you have a watch that is not working as it once did, send it to us. You will be amazed at your “as new looking” watch.

Our Miami Beach showroom is located across from the world-renowned Bal Harbour Shops. If you are ever in the area please stop by, we would love to meet you and show you our store.

Hope this brief intro to our company makes you feel reassured that you are dealing with a reputable, long-standing and honest company. Your watch will be in good hands.

#1 Specialist on Rolex Cosmograph Daytona

Visit Gray and Sons Jewelers is a one-stop source for all your luxury watch and high-end jewelry needs throughout Florida, especially in Miami, Coral Gables, Miami Beach, Sunny Isles, and Fort Lauderdale. Gray and Sons has an excellent reputation with many customers in New York, Massachusetts, California, Texas, Nevada, Pennsylvania, and Chicago.

Don’t hesitate to contact Gray and Sons customer service and have a look at the helpful FAQ on website


Request pre-labeled Easy Ship Box and mail in your item to repair.

Request an Easy Ship Box
Once you receive the box and send your watch, one of our Master Watchmakers will evaluate it and contact you with a free estimate. If you approve of the estimate we will proceed with the repair, which generally takes 2-3 weeks.
If you wish to repair at a different time we will ship the watch back to you at no cost to you.