Piaget

European Watch Clock and Jewellery Fair 1977 BF 306
Supreme elegance : this Piaget quartz watch features an exceptionally thin quartz movement (3.1 mm). And that s not all : the quartz vibrates 524,000 times a second ; the circuits are equivalent to 888 transistors and the battery provides 2 years’ power reserve. Esthetics well served by technology. (PIAGET)