Calatrava 5212A-001 Weekly Calendar 2020 - Ref 5212A-001 Steel case on caramel leather strap with Patek pin buckle, silver white dial with 5 hands for full calendar and week function, double sapphire crystal, automatic movement caliber 26-330 S C J SE with gold oscillating weight and Poicon de Genève , 40mm in diameter, delivered with box, outer box and Patek papers, near mint condition, future collector in the making and super rare piece with a Steel complication from Patek....