New York - Bonhams presents New York Fine Watches on June 9-16 2025. The curated online sale on Bonhams.com includes 91-lots of sought after modern timepieces including a collection of exceptional skeletonised tourbillons with their intricate design, visual appeal and specialised escapement mechanisms that reveal the intricate components of the watch, presented alongside a selection of elegant watches with exquisite, handcrafted enamel dials. The online sale features timepieces from prestigious makers such as Audemars Piguet, Breguet, IWC, Jaeger-LeCoultre, Patek Philippe, Rolex and Vacheron Constantin.

Leading the sale is a limited-edition Vacheron Constantin, St. Gervais 250th Anniversary, reference 80251/000P – 9139, circa 2006. Founded in 1755, Vacheron Constantin celebrated its 250th anniversary in 2005 with commemorative timepieces honoring the brand and its roots in Geneva. The year "1755" was symbolically reflected in the number of limited-edition pieces produced. Representing the "55" is the impressive Saint-Gervais model, named after the historic Saint-Gervais district of Geneva, once home to the city's esteemed independent master watchmakers. The platinum manual wind perpetual calendar tourbillon wristwatch with a gold and silvered guilloché dial pays tribute to both the heritage of the maison and the artisanal legacy of the area. Offered with an estimate of US$100,000-150,000.

Another notable lot is a Girard-Perregaux, néo-Tourbillon with three gold bridges, reference 99270, circa 2019. Dating back to 1791, the Swiss luxury watch manufacturer are known for their innovative watchmaking and dedication to craftsmanship. The fine and rare black titanium automatic skeletonized tourbillon wristwatch is offered with an estimate of US$50,000-70,000.

Another highlight is a Patek Philippe Calatrava 'Squelette', reference 3878J, circa 1990s. Reference 3878 is Patek Philippe's first self-winding skeletonized wristwatch and has remained a collector favourite since its debut. The intricate process of hand-engraving each movement component, beautifully displayed between two sapphire crystals, made production challenging. As a result, only 500 pieces were produced before being discontinued in 1998, resulting in few of this model appearing at auction. The rare 18K gold automatic skeletonised wristwatch is offered with an estimate of US$20,000-30,000.

Nate Borgelt, Bonhams Head of Watches department in America, commented: "We are delighted to present New York Fine Watches with a collection of timepieces from the world's most storied makers. The sale includes timepieces that are a true celebration of craftsmanship and creativity offering best in class examples from a Rolex Padellone 8171 circa 1950 to the most technically ambitious watches with skeletionized movements and enamel dials. Sale highlights include the rare and coveted Patek Philippe Calatrava 'Squelette' that typically only surfaces at auction every two to three years, to the Vacheron Constantin, St. Gervais 250th Anniversary timepiece that demonstrates the maisons artisanal craftsmanship and brand heritage. The models on offer have become a cornerstone of collecting within the horology community and we expect them to garner much attention and excitement among watch aficionados across the globe."

• A Breguet Classique, reference 3355, circa 2010. The platinum manual wind skeletonised tourbillon wristwatch is offered with an estimate of US$30,000-50,000.

• An Audemars Piguet Quantième Perpétuel Automatique, reference 25668PT, circa 1990s. Designed with a skeletonized dial and movement that highlight the intricate caliber movement of meticulously hand-engraved and openworked movement, visible through both the sapphire dial and case back. The exquisite platinum automatic skeletonised perpetual calendar bracelet watch with moon phase, is a rare and sought-after model among collectors. The watch is offered with an estimate of US$15,000-25,000.

Notable enamel dial watches include:

• A Vacheron Constantin Audubon - Birds of America, reference 43060/000J, circa 2006. The 18K gold automatic wristwatch with a cloisonné enamel dial depicting a 'Long Billed Curlew', is offered with an estimate of US$20,000-30,000.

• A Vacheron Constantin Audubon - Birds of America, reference 43060/000J, circa 2000. The 18K gold automatic wristwatch with a cloisonné enamel dial depicting a 'Shoveller Duck', is offered with an estimate of US$20,000-30,000.

• A Ulysee Nardin Chronometer San Marco 'Flying Cloud', reference 139-10, circa 2000s. The fine and limited-edition platinum automatic wristwatch with a cloisonné enamel dial depicts a sailboat on the ocean crafted in translucent blue enamel. The watch is offered with an estimate of US$20,000-30,000.