An elliptical case, between a circle and a rectangle. A dial in blue gold, with gold hands and hour markers floating over its depths. When it first appeared in 1968, Patek Philippe's Golden Ellipse was a bold departure from traditional watch shapes. But far from bowing to fashion, this innovative watch had a sense of inner harmony that was very pleasing to the eye. Its design was inspired by the principle of the "golden section" discovered by the ancient Greek mathematicians. This "divine" proportion, expressed as a ratio of 1 / 1.6181, forms the basis of some of history's greatest works of art and architecture.