These are watches equipped with complex mechanisms such as tourbillons, perpetual calendars, and minute repeaters, and can be considered the culmination of Patek Philippe's advanced watchmaking technology. They can be divided into grand complications, which have three or more mechanisms, and other complications. Grand complications are only offered by a limited number of brands besides Patek Philippe, such as Audemars Piguet.

Founded in 1839, Patek Philippe is a prestigious watchmaker considered to be at the pinnacle of the world's three greatest watchmakers. Its price is supported by the highest standards of finishing and complex mechanisms achieved through integrated in-house manufacturing, as well as its rarity due to extremely limited production numbers. As symbolized by its advertising slogan, "You are only a temporary owner, until you pass it on to the next generation," it is highly regarded by enthusiasts and collectors worldwide as an asset to be passed down through generations.

The Nautilus, synonymous with luxury sports watches, enjoys overwhelming popularity, followed by the more casual Aquanaut, the Calatrava, the origin of dress watches, and the Complications series featuring complex mechanisms. The Nautilus, in particular, is extremely difficult to obtain worldwide and is known as a model that commands an exceptional premium even in the pre-owned market.

Both are sports watches designed in the style of Gerald Genta, but the Nautilus has a classic and luxurious look with its rounded octagonal bezel and horizontally striped dial, while the Aquanaut is characterized by its light and casual feel with a tropical strap. If you're looking for a classic that looks great even in formal settings, the Nautilus is recommended, but if you want something lighter and easier to wear every day, the Aquanaut is the better choice.

Popular models like the Nautilus are extremely difficult to purchase at their list price from authorized dealers, and it's not uncommon to have to wait a long time to get your hands on the model you want. Yukizaki offers the undeniable advantage of being able to "immediately purchase" current models and rare discontinued models that are difficult to obtain from authorized dealers, at fair market prices.

Patek Philippe watches are in high demand, far exceeding supply. Nautilus and Aquanaut models, in particular, are difficult to obtain through official channels, resulting in premium prices in the pre-owned and parallel import markets that surpass the retail price. At Yukizaki, we offer these hard-to-find models and rare, discontinued models at fair market prices, with clear inventory information available.

Patek Philippe watches hold exceptional asset value even among luxury timepieces. Popular models like the Nautilus and Aquanaut are traded at premium prices far exceeding their retail price, and their pre-owned market value tends to rise year after year. Due to their rarity and the brand's reputation being recognized worldwide, their resale value is among the highest of all luxury watches.

Please rest assured. At Yukizaki, our own specialized workshop, "Yukizaki Lab," employs skilled watchmakers and appraisers who conduct multiple layers of authenticity checks, and only products that have been confirmed to be genuine are listed. High-value and rare Patek Philippe watches require expert appraisal, but with over 45 years of experience and a keen eye for quality, we guarantee that no counterfeit products will ever be included.

At Yukizaki, we only handle high-quality pre-owned Patek Philippe watches that have undergone thorough cleaning and polishing of the exterior, as well as inspection and adjustment of the movement by a professional watchmaker before sale, and have passed a double-check by our sales manager. The condition of each item is clearly stated on the product page, and you can check it in advance through photos or inquiries, so you can choose with confidence even though it is a pre-owned watch.

In the pre-owned market, watches with all accessories, such as the warranty card and box, are more valuable, and for Patek Philippe watches in particular, the presence or absence of the "extract" (archive certificate), which is equivalent to a birth certificate, also affects the valuation. At Yukizaki, we clearly indicate whether or not accessories are included on the product page, and we offer watches without accessories at a more affordable price, so you can choose according to your needs.

The quality and performance of the watch itself are identical. The only difference is the distribution route: genuine products are sold through official domestic channels, while parallel imports are legally sourced from authorized overseas retailers. Rest assured that even parallel imports are eligible for official maintenance if they are genuine.

At Yukizaki, we offer a reliable warranty on both new and used items (coverage and duration vary depending on the product's condition). Natural malfunctions within the machine that occur under normal use are handled at our own specialized workshop, and we can also arrange for manufacturer repairs through our store counter. For detailed warranty regulations, please check the "Warranty Information" section in our purchase guide.

High-end mechanical watches are recommended to undergo an overhaul (disassembly and cleaning) every 3 to 5 years to maintain their accuracy and water resistance. Many Patek Philippe models feature complex mechanisms, and regular inspections by expert technicians are key to ensuring long-term enjoyment. With proper maintenance, a Patek Philippe watch can be a lifelong treasure that can be passed down through generations.