Welcome toOne of One Watch & Jewelry

Based in Seoul, South Korea, we specialize in sourcing and trading high-end luxury watches and fine jewelry for collectors and dealers worldwide.

Experts in Ultra-Luxury Timepieces

Our core expertise lies in the world's most prestigious watch brands, including Patek Philippe, Richard Mille, Audemars Piguet, Rolex, and Vacheron Constantin.

Specialists in Fine & High Jewelry

As a company that handles a significant volume of luxury watch transactions each year, we have built strong relationships with VIP collectors and buyers both in Korea and internationally. This network allows us to source not only popular luxury jewelry pieces but also exceptional high jewelry creations from leading maisons such as Tiffany & Co., Cartier, Bulgari, Boucheron, Buccellati, Pomellato, Damiani, and Chaumet.

ONE OF ONE luxury watch store exterior in Apgujeong, Seoul

Interior of the ONE OF ONE showroom in Apgujeong, Seoul

Pre-owned luxury watches displayed in the showroom

Our Authentication Expertise

At ONE OF ONE, authentication goes beyond checking serial numbers or hallmarks. We combine professional authentication equipment, proprietary reference data, and extensive experience in the luxury watch and jewelry market to evaluate each piece based on its materials, craftsmanship, production period, and overall consistency.

Our specialty is authenticating high-end timepieces such as Richard Mille, Patek Philippe, and Audemars Piguet. These exceptional watches require real-world experience gained through buying, selling, and evaluating rare luxury watches—expertise that goes far beyond reference materials alone.

A Richard Mille watch being inspected with gloves under a bench light

A Patek Philippe Nautilus resting on its certificate of origin during appraisal

Patek Philippe caseback engraving examined under magnification

Macro view of a Patek Philippe movement engraving under inspection

Discover how ONE OF ONE evaluates high-end watches and jewelry through professional equipment, proprietary reference data, and years of hands-on market experience.

Explore Our Authentication Process

Why Buy From Korea

Thanks to the favorable exchange rate of the Korean Won against the U.S. Dollar, South Korea currently offers some of the most attractive pricing opportunities in the luxury secondary market.