A Rare Patek Philippe "ANTI-MAGNETIC" Ref.1578GM 18KY.Gold (35mm. Large Size.)
The Lugs are Claw style and Flared. Subsidialy seconds Dial.
Acrylic Crystal. *Caliber:27-AM400 "ANTI-MAGNETIC"
18 Jewels and Adjusted to temperature, Isochronism and 5 positions.
As mentionred, *Patek Philipple Frist ANTI-MAGNETIC movement Debuted in 1958.
It was fitted with a Gold Lever so that it could with stand and maintain accuracy near High Magnetic fields.
*This movement is Double Stamped with the Geneva Seal.