Patek Philippe 1578J Vintage Calatrava Watch 35mm with "Spider Lugs" Circa 1957

Introduction: This 1578J Patek Philippe Calatrava watch features a 35 mm in diameter case, with the original silver white dial, and raised 18K gold raised hour markers, sweep second hand and spider lugs. The watch is powered with a 27 SC caliber movement #707896 and case #2308076 Condition: This watch is in mint original condition. The watch appears not to have been worn much, and was of occasional use only. The dial is original and still has its hard enamel signature. The case has not been over polished and the angles of the case and the lugs are very sharp. The hallmark stamps on the lugs are very strong and pronounced. Date & Paperwork: The watch was made in 1957-1958, Essay: Reference 1578 was launched in 1943 and produced until 1963, available in yellow and pink gold and with either subsidiary seconds or sweep center seconds. Movements: Manual-wind calibers like 10-200, 12-120, 12-400, or sweep-seconds 27 SC It is distinguished by its "spider" lugs similar to chronograph reference 1579. Specifications: Reference Number: 1578J Year: 1957 Movement: Manual Case Diameter: 35mm Dial Color: Silver White