No Image Lot 198 A Patek Philippe Calatrava double signed Gübelin dial wristwatch in 18ct gold. Model: 3520 Serial: 198A Patek Philippe Calatrava double signed Gübelin dial wristwatch in 18ct gold. Model: 3520 Serial: Dawsons Auctioneers A Patek Philippe Calatrava double signed Gübelin dial wristwatch in 18ct gold. Model: 3520 Serial: 1135726 Year: 1967 Case Material: 18ct gold Ca... Add to watchlist Live