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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 Summit of Engineering: Audemars Piguet Ultra-Complication
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 term Audemars Piguet Ultra-Complication refers to the brand’s most technically ambitious timepieces, which typically combine a minimum of three classic high complications—such as a minute repeater, perpetual calendar, and split-seconds chronograph—into a single, magnificent movement.

These creations are the ultimate expression of Audemars Piguet’s historical technical skill, proving their mastery over the most challenging elements of horology. Every Audemars Piguet Ultra-Complication Watch represents years of dedicated research and development, often resulting in patents for new mechanical solutions.


The Research and Development Series: RD#4

The pinnacle of the modern Ultra-Complication line is the revolutionary Audemars Piguet Code 11.59 Ultra-Complication Universelle RD#4. This timepiece, which debuted in the Code 11.59 line, integrates over 40 distinct functions, setting a new benchmark for integrated complexity. A major component of this watch is the innovative Audemars Piguet Supersonnerie technology, which drastically enhances the volume, clarity, and resonance of the minute repeater, making it audible even through the modern watch case. The integration of this vast complexity within the recognizable Code 11.59 architecture makes the Audemars Piguet RD#4 one of the most significant watches in contemporary horology.

Defining the Grande Complication Standard

Before the modern RD series, Audemars Piguet was famous for producing traditional Grande Complication Audemars Piguet models, which typically housed the three essential complications. Today, this ultra-complex category also includes specialized modern innovations like the Audemars Piguet Concept Laptimer, which features a dual-chronograph mechanism allowing successive lap times to be recorded instantly. Watches like the Audemars Piguet Laptimer demonstrate the brand’s commitment to applying ultra-complexity not just to traditional functions, but also to highly specific, modern uses that push mechanical performance limits.

Rarity and Value

These unique pieces are produced in extremely limited quantities, often as one-off or bespoke creations, making the AP Ultra-Complication Price astronomical and largely irrelevant to the standard retail market. Their value is determined by the rarity of their movements, the level of hand-finishing, and their historic significance. These watches are rarely available, and when they do appear, they command prices that place them among the most expensive timepieces in the world.