• Brand: Patek Philippe
  • Made: 1956
  • Model: Calatrava
  • Reference: 2526
  • Calibre12-600AT
  • Movement: Automatic
  • Material: 18ct yellow gold
  • Features/complications: Enamel dial
  • Dial: Enamel dial with outer minute track featuring 18ct yellow gold applied mirror polished hour indices with 18ct yellow gold Dauphine hands and subsidiary seconds at 6 o'clock
  • Case Dimensions: 35.5mm
  • Bracelet/Strap: Leather strap
  • Accessories: Extract from the Archives
  • SKU: 3056


Launched in 1953, the Patek Philippe reference 2526 was the epitome of mid-20th century design with its oversized 35.5mm diameter Baumgartner-fabricated case.  The 2526 is Patek Philippe's first self-winding wristwatch consisting of an in-house 12-ligne movement, roughly 6 mm in diameter. The calibre 12-600AT features Patek's Gyromax balance wheel (first introduced in 1951), which is an adjustable inertia balance. A Gyromax balance's adjustment screws are not, as is usually the case, on the outside of the rim – instead, they are actually recessed into the rim of the wheel. Production continued until 1960 and during the 12-600’s seven year production period, 7100 movements were made and were featured not only in the reference 2526, but also in references as diverse as the 2540 to the 3425.