A. Lange & Söhne is to make a unique version of their LANGE ZEITWERK in white gold with a grey dial for this year's Kidz Horizon Charity Ball in Singapore, a first for the brand in Asia. In August 2009, Duncan Wang, an American Chinese businessman and watch collector passed away at the age of 44 years. His parents and his friends in Singapore found a fitting way to remember him, based on the two things that he was most passionate about – watches and charities.