Lot comprising two pocket watches from the end of the 19th century, one of them PATENT REGULATOR and the other one CHRONOMETER A. PÉREZ BAZAR PARISIEN VALLADOLID. Metal. In need of adjustment. Measurements: 5 cm and 5,5 cm. Of similar aesthetic characteristics, both watches have a metal case, white porcelain dial, Arabic numerals, hands highlighted in cobalt blue and a fastening ring and a fluted crown at 12 o`clock. This piece belongs to the personal collection of Don Juan José Ontalva (Chinchón, 1930- Madrid, 2019), a famous watchmaker from Madrid, descendant of several family generations dedicated to the world of watches. During his career he achieved a high degree of precision and skill, becoming the master of other watchmakers. He is currently recognised for numerous works, including the commissioning and restoration of the Billeter astronomical clock, located in the Congress of Deputies.