So called father of all quartz watches this is the Girard Perrgaux Elcron. The calibre 352 was developed by Girard Perregaux
at the time when the quartz revolution was in its infancy. The quartz technology was only just being developed for use in wristwatches
and the majority of the Swiss watchmaking industry joined forces on the BETA 21 project. Girard Perregaux were widely recognised as
having one of the best research and development departments in the industry which pioneered new technology. Due to this in house expertise,
GP decided to go it alone and with the added financial backing of one Jaeger Le Coultre they set about developing their own quartz movement.