by Elisabeth Perusset Lagger, original certificate and invoice , SIGNED PATEK PHILIPPE, GENÈVE, REF. 1103, MOVEMENT NO. 1'803'515, MANUFACTURED IN 1980 " /> Patek Philippe. A superb and unique gilt metal square electro-mechanical and solar-powered desk timepiece with cloisonné enamel decoration <I>"La Nature"</I> by Elisabeth Perusset Lagger, original certificate and invoice , SIGNED PATEK PHILIPPE, GENÈVE, REF. 1103, MOVEMENT NO. 1'803'515, MANUFACTURED IN 1980 | Christie's