The timepiece donated by Patek Philippe to the charity auction, Only Watch, was sold for 31 million Swiss francs (approximately 3.35 billion yen) on November 9, 2019. This is the highest price paid for a watch offered at the 2019 Only Watch auction.

The Grandmaster Chime: a masterpiece of Patek Philippe technology
Patek Philippe has been a full supporter of the Only Watch auction since its inception, offering extremely special, unique pieces at each auction. The 2019 offering, the Grandmaster Chime 6300A-010, is a model housed in a stainless steel case, a rare find in the Patek Philippe collection, and is equipped with the brand's most complicated movement. The previous record for the highest auction price at the Only Watch auction, where only one-of-a-kind pieces are sold, was set in 2015 by a stainless steel Patek Philippe 5016 model, which sold for 7.3 million Swiss francs (approximately 790 million yen). This year's auction marked a historic achievement, far surpassing that record.
Only Watch Auction to Support Muscular Dystrophy Patients
The Only Watch auction, which began in 2005 and has been held every two years since, has raised significant funds for Duchenne muscular dystrophy research, and during that time has seen promising research breakthroughs that have overcome some crucial hurdles and offer potential treatments for other forms of muscular dystrophy.
