The hand-wound calibre 215 PS LU movement in Patek Philippe's Calatrava Ref. 7121 can track the Moon’s phases with such precision that a correction is needed only once every 122 years.
The hand-wound calibre 215 PS LU movement in Patek Philippe's Calatrava Ref. 7121 can track the Moon’s phases with such precision that a correction is needed only once every 122 years.
The hand-wound calibre 215 PS LU movement in Patek Philippe's Calatrava Ref. 7121 can track the Moon’s phases with such precision that a correction is needed only once every 122 years.
