Stainless steel Patek Philippe ref. 3418 Calatrava wristwatch. Made 1960

Information

• Brand: Patek Philippe
• Made: 1960
• Model: Calatrava
• Reference: 3418
• Calibre: 12-400
• Movement: Manual
• Material: Stainless steel
• Features/complications: Antimagnetic movement
• Dial: Silvered dial featuring outer minute track with applied mirror polished baton shaped hour indices with Baton hands and sub-seconds dial
• Case dimensions: 34mm
• Bracelet/strap: Stainless steel bracelet
• Accessories: Extract from the Archives
• SKU: 3536

Essay

Introduced in 1949-1950, the 12-400 is the known successor to Patek's famous 12-120 calibre. While maintaining the essential architecture, the 12-400 incorporated several critical improvements, including a redesigned regulator system enhancing the overall reliability. These refinements elevated the movement from a delicate dress-watch caliber into a far more versatile platform, capable of meeting the rigors of mid-century wristwatch use.

Patek Philippe produced fewer than 100 to around 600–1,000 total pieces (including related variants like the 3418 A and 3419) that were manufactured between 1958 and 1962.

•    First Series (1958–1960): Approximately 200 pieces made (using the calibre 12-400 or calibre 12-AM 400 movement).
•    Second Series (1960–1962): Approximately 400 pieces made (using the calibre 27-400 or calibre 27-AM 400 movement).