
Complete Overhaul Repair & Service
Rolex Day- Date Masterpiece
Servicing of a Rolex Day-Date Masterpiece Automatic Watch
The Rolex Day-Date 39mm 18946 is a statement of luxury crafted entirely in platinum, showcasing the unmistakable radiance of this precious metal. Its refined 39mm case flows seamlessly together, exemplifying Rolex’s dedication to perfect symmetry and proportion.
This particular Masterpiece model features a 39mm x 39mm case with a distinctive round caseback that enhances its elegant profile. The dial presents diamond hour markers encircling the day and date apertures, each catching the light with subtle brilliance. The black mother-of-pearl dial contrasts beautifully with the platinum case and bracelet, creating a sophisticated and harmonious design.
Its fluted bezel — a hallmark of Rolex craftsmanship — adds depth and character to the overall aesthetic. Certified pre-owned and fully inspected by the Gray & Sons team, the Day-Date 39mm 18946 delivers the quality, heritage, and craftsmanship expected from the crown brand.
Understated yet unmistakably powerful, this 2002 platinum Rolex Day-Date makes a meaningful addition to any luxury watch collection. Blending precision engineering with an all-platinum construction, the Day-Date 39mm 18946 stands as a timeless expression of refinement and prestige.
Rolex Repair Services
Gray & Sons - Top Watch Repair Service Center For High Caliber Watches
When we conduct an overhaul and refurbishment of a Rolex Masterpiece automatic watch, it requires a meticulous and time-consuming process. We first open the caseback to inspect for any signs of rust or damage that may necessitate replacement parts. In this case, the movement needed a thorough cleaning and re-lubrication, while the external case had unsightly scratches requiring expert polishing.
After assessing the watch and identifying any other necessary components, our skilled watchmaker carefully disassembles it piece by piece. The movement, crystal, stem and other parts are separated from the head and bracelet. Our watchmaker methodically takes apart the mechanism, evaluating each component. Any required replacement parts like screws, springs and pivots are noted. The components then undergo a thorough six-step ultrasonic cleaning process to remove all dirt, dust and oils.
Our watchmaker reassembles the movement, applying the proper lubrication as specified. This delicate process is time-intensive, depending on the complexity of the watch. While our watchmaker focuses on the movement, our polisher expertly removes case and bracelet scratches using a polishing wheel. The case and bracelet are then ultrasonically cleaned, rinsed and dried under a heat lamp.
After the movement is reassembled and the watch re-encased, final quality control begins. We rigorously test timekeeping accuracy and water resistance at simulated depths. All complications like the hands are checked for proper function. The watch runs on a winding wheel for 6-8 hours, simulating wrist motion. It then rests while running 24-48 hours more to verify performance. This comprehensive procedure ensures the automatic movement will keep accurate time when worn or stored.
Our diagnostics machine evaluates durability and function to confirm the movement withstands natural wrist motions. The full restoration process can take up to 8 weeks. Meticulous at every step, we ensure the serviced watch operates with the utmost precision when completely overhauled and refurbished by our experts.
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Get to Know More About Us, Gray and Sons Jewelers - Watch Specialists
For over 43 years, Gray and Sons have specialized in the luxury business of pre-owned watches and estate jewelry. Every item in our inventory made from platinum, gold, and silver has been repaired or restored and polished to like-new condition.
Every day customers come into our independent watch repair center to sell us their watches and jewelry items so our inventory is ever-growing. Since many things come in every day, we make sure to update the website daily! Customers can request a free monthly catalog that includes our updated inventory.
Our sales associates are fluent in English, Spanish, French, Polish, and Russian so language barriers are often not a problem. Aside from buying, selling, and repairing, we also do trade-ins or take things in on consignment. For all your luxury needs, come visit us!
Our showroom is located in the heart of Miami Beach diagonally across the street from the world-renowned Bal Harbour Shops. If ever in the area, we highly recommend you come into our store; we’d love to meet you!
Every watch sold at Gray and Sons Jewelers comes with a “Like-New for Life” warranty. The Like New for Life warranty guarantees that anyone who buys a watch at Gray & Sons Jewelers can bring the watch in once a year and Gray & Sons will externally clean and polish the watch as long as the customer services the watch every 3-5 years.
We make sure to check all the boxes when quality controlling an item that will eventually acquire a new owner to enjoy. Every watch that comes into Gray and Sons Jewelers for repair will automatically receive a 12-month warranty once received by the customer post-repair. Rolex watches in particular receive a 24-month mechanical warranty.
Gray & Sons check the automatic rotor to make sure the watch’s power reserve is functioning properly, timekeeping accuracy, water resistance, chronograph accuracy, and several other quality control tests.
#1 Specialist on Rolex Watch Repairs
Visit Gray and Sons Jewelers is a one-stop source for all your luxury watches and high-end jewelry needs throughout Florida, especially in Miami, Coral Gables, Miami Beach, Sunny Isles, and Fort Lauderdale. Gray and Sons have an excellent reputation with many customers in New York, Massachusetts, California, Texas, Nevada, Pennsylvania, and Chicago. Access our website by clicking here for a free estimate .
OUR EXPERIENCE
OVER 150 YEARS OF COMBINED WATCHMAKING AND JEWELRY/CASE AND BRACELET REPAIR EXPERIENCE!

How to Repair Your Watch with Gray & Sons Jewelers
We offer our watch repair services locally in South Florida (Miami, Miami Beach, Surfside, Bal Harbour, Fort Lauderdale, and West Palm Beach), and nationally with our Easy Ship Box Option.
Local Repairs
Come visit our showroom and let us evaluate your watch. Our Master-trained watchmakers are among the best in the United States and we just happen to be located on Miami Beach. We will provide you a prompt estimate.
Repairs from Customers Nationwide
To better serve customers nationwide, we created the Easy Ship Box - the most convenient and secure way to send fragile luxury items. It ensures your watch is well protected when shipped from anywhere in the United States. Please remember to always mail your watch using Registered Mail and fully insure your package for maximum protection.
Watch Repairs by Gray & Sons
Some watch repair shops just take shortcuts once they have your money but that's not what you're going to see from our team. Explore our repair videos on YouTube by searching "Gray and Sons," or visit our Miami Beach showroom. We specialize in brands like Rolex, Cartier, Patek Philippe, Omega, and more, offering unmatched quality and care.
Each-pre-owned watch that we sell at Gray & Sons has undergone a sophisticated inspection by our master trained technicians. That means that timepieces have been tested inside and out to ensure functionality as well as timekeeping.
Whenever they need to repair or replace an individual component, our watchmakers use Swiss parts. These components, whenever possible, come from the manufacturer. Sometimes our master watchmakers fabricate and refurbish parts that are not otherwise available to us to purchase from the manufacturer and they come from other sources.
Gray and Sons is a Proudly Unauthorized Independent dealer dealing in preowned, used and unused Rolex watches, buying, selling and repairing Rolex watches since 1980.
Note: Occasionally, custom leather straps, bands, dials, and stones may be added outside the original manufacturer by the prior owner to upgrade the look of a certified pre-owned watch.
Repaired Watch Return Policy. Once your watch repair or service is complete, we’ll notify you promptly to arrange for its return. We urge you to pick up your watch as soon as possible after receiving this notification. Please note that if a watch remains unclaimed 180 days after we provide written notice of its availability, Gray & Sons will not be held liable for any loss, provided you’ve authorized the repairs or service. Your timely response ensures your treasured timepiece is safely back in your hands.
Payments: We accept only bank wire, Zelle, ACH and personal checks. Personal checks must be cleared before shipping.


















