Perrelet was founded in 1729 by Albert-Louis who, from a humble Swiss family living in the mountains, became the inventor of the self-winding watch and went on to become one of the greatest creative watchmakers of all time. The Perrelet brand is world-renowned for continuing this legacy and it consistently pioneers new techniques and technology to create innovative and beautiful watches. Today's stunning collection incorporates the Calibre P-321 and is now available at Watches of Mayfair.