In just a few days, the Puerta del Sol clock will, once again, welcome Spaniards to the new year. In Spain it is traditional to visit the Puerta del Sol square in Madrid on the last day of the year and eat 12 grapes while listening to the 12 strikes of the bell. Everything has to be ready for that moment, security protocols, transport, emergency services, cameras and media... But probably the most important element of that night is the clock located in the tower of the Royal House of the Post Office. Since 1996 the workshop in charge of the maintenance of the Puerta del Sol clock on this day and throughout the year is the Relojeria Losada. On this broadast, we visit the "Relojeria" to learn all about the preparations for this year's celebration with Pedro Ortiz Rey, one of their watchmakers.