Family: 27
The 27 AM 400 is a manual-winding caliber introduced by Patek Philippe in 1950. It belongs to the caliber 27 family and was produced as an antimagnetic movement designed for the Calatrava collection. As an in-house movement, it reflects Patek Philippe's proprietary approach to watchmaking during the mid-20th century. The caliber was discontinued, making it a vintage reference among collectors.
Last updated 8 Jul 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Display Type
Analog
Winding
Manual
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
DiscontinuedMANUFACTURE
In-houseLAUNCH YEAR
1950CALIBER FAMILY
27ALSO KNOWN AS
cal. 27 am 400
FOR WATCH DEALERS
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