Accompanied by Patek Philippe Certificat d'Origine et de Garantie and Extract from the Archives confirming production of the present watch with pink dial, applied gold numerals and tachymetre scale in 1945 and its subsequent sale on 27 May 1946. The Extract furthermore states that the original stainless steel and gold case was replaced by the present 18K pink gold case, number 644'907, during a servicing in 1946.
Beyer Chronometrie Zurich
Since its foundation in 1760, the prestigious firm has always been passed down from father to son, each a fully trained watchmaker. Beyer Chronometrie was the first shop in Switzerland specializing exclusively in watches, clocks and jewellery. The firm is currently managed by René Beyer who represents the seventh generation of the Beyer family.
The company also owns the renowned Clock and Watch Museum Beyer Zürich, one of the world's most important horological collections. It comprises some 500 pieces dating from 1400 BC to the present day.