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julio collazos profile picture
julio collazos
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Amazing work on my engagement ring very friendly service. Ty for the work
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Jessica Jones profile picture
Jessica Jones
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I had a wonderful experience selling my jewelry! The entire process was easy, professional, and stress freeI felt comfortable throughout the whole experience and was very happy with the offer I received . Everyone was friendly, honest, and knowledgeable. I would definitely recommend them to anyone looking to sell their jewelry. I will absolutely be back!
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K Price profile picture
K Price
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Great experience! Igor is very knowledgeable about his products. Fast, secure delivery. I am now a customer for life.
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John Costello profile picture
John Costello
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Buying an expensive watch online is scary considering the extensive network of scammers out there. I took every precaution I could before I purchased a Rolex from Igor at Diamond Source NYC. All said and done, Igor did everything he promised. He is honest, responsive and very respectful. Upon receipt of the watch it was exactly as described. Beautiful, unworn and 100% authentic. This guy can find anything you’re looking for. Thanks Igor.
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Deborah Chang profile picture
Deborah Chang
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Took a good amount of time to assess what I had and gave me top dollar matching and exceeding another estimate. They even allowed me to watch them count the cash given to me. I would come back to work with them again.
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Jeruel Trinidad profile picture
Jeruel Trinidad
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My overall experience in my first ever purchase of a luxury watch from Diamond Source NYC is nothing but a thrilling and exemplary experience. From inquiry to shipping, Igor has been outstanding in helping me from video inspection of the watch to next day shipping to my address. Most of all, I received a lovely watch, excellent like-new condition , excellent packing, and the watch itself is truly authentic complete with box and papers.
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Joseph Dalto profile picture
Joseph Dalto
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Igor is a good guy and has good business. If you want a watch this is the place to go to.. talked with multiple people to source a watch I wanted and he took care of me and was able to be competitive to everyone else’s prices. He is in it for the long term relationship opposed to trying to make the most off of someone initially. He’s earned a long term customer for life and will be getting every future watch from him. Look forward to growing the collection and having someone I know will not take advantage and will get me the best piece for the best price!
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Anelisa San Lorenzo profile picture
Anelisa San Lorenzo
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Igor is the best jeweler in nyc!
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Jason Smith profile picture
Jason Smith
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Outstanding Shop! Purchased a custom luxury watch and it was seamless. Igor's the man...quick sourcing, great communication and impeccable quality. I highly recommend these guys.
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The Authority on Rolex Daytona 40mm Timepieces in New York City Pre-Owned & New | NYC Diamond District

Questions? Call (212) 730-5959 or visit us at 20 W 47th St, Suite 401, New York, NY

The 40mm Rolex Daytona represents the quintessential modern dimension of the world’s most prestigious chronograph.

At Diamond Source NYC, located in the prestigious Diamond District, we specialize in the procurement and sale of these precisely engineered instruments. The 40mm case architecture has served as the definitive standard for the Cosmograph Daytona since the introduction of the automatic movement in 1988, offering a balanced profile that transcends shifting horological trends.

Our firm provides a sophisticated platform for collectors to acquire these high-demand references, supported by two decades of professional expertise and a commitment to transparent market pricing. Every 40mm Daytona in our collection is treated as a significant asset, maintained to the highest standards of horological excellence.

Sale!
Sale!
Original price was: $135,000.00.Current price is: $125,000.00.

Engineering Excellence of the 40mm Oyster Case

The 40mm Oyster case is a marvel of industrial design, offering a silhouette that provides substantial presence while maintaining ergonomic comfort. Crafted from blocks of solid 904L Oystersteel, 18ct gold, or 950 platinum, this case size is engineered for durability and water resistance up to 100 meters (330 feet). The architecture of the 40mm Daytona is characterized by its signature screw-down pushers and Triplock winding crown, which ensure the integrity of the movement against environmental factors. At Diamond Source NYC, we verify the structural and aesthetic integrity of every case, ensuring that the polished and brushed surfaces meet the exacting factory finish expected by the professional collector. This dimension remains the industry benchmark, favored for its versatility across both professional and formal attire.

Calibre 4130 and 4131: The Mechanical Core

The internal mechanics of the 40mm Daytona are as significant as its external design. Most contemporary 40mm references are powered by the Calibre 4130, a self-winding mechanical chronograph movement entirely developed and manufactured by Rolex. This movement features a vertical clutch rather than a lateral one, allowing for instantaneous chronograph activation without the loss of amplitude. In 2023, the introduction of the Calibre 4131 further refined this legacy with the Chronergy escapement and enhanced decorative finishes. Diamond Source NYC’s technical staff validates the performance of these movements, ensuring each timepiece operates within the Superlative Chronometer parameters of -2/+2 seconds per day. Our clients receive not just a luxury object, but a high-precision instrument of verified mechanical pedigree.

Strategic Acquisition and Market Integrity

Navigating the market for 40mm Rolex Daytona watches requires a partner with deep-rooted industry connections and professional integrity. Diamond Source NYC serves as this vital link for the New York market and beyond. Because the 40mm Daytona is among the most sought-after timepieces globally, provenance is paramount. We prioritize inventory that includes original boxes and warranty documentation to safeguard the long-term value of your acquisition. Our professional consultants provide detailed insights into the nuances between stainless steel, Rolesor, and precious metal variants, allowing you to make an informed decision based on both personal preference and investment strategy. When you acquire a 40mm Daytona from Diamond Source NYC, you are engaging with a legacy of excellence that has defined the Diamond District for over twenty years.