|Diameter:||25.60 mm (11.5 ligne)|
|Complications:||3-Button Chronograph, 6-Column Chronograph, Chronograph, Column Wheel Chronograph, Date, Modular, Modular Chronograph, Quick Date Correction, Rattrapante Chronograph, Vertical Clutch Chronograph|
|Hands:||12 Hour Chronograph Hand at 9:00, 30 Minute Chronograph Hand at 3:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Date Window at 4:30, Small Seconds Hand at 6:00|
|Distinguishing Technical Characteristics|
Clockwise Balance Cock
|Production: 1988 –|
Cal. 1181 (also called FP 11.81, Piguet, F. Piguet, etc) is a column wheel rattrapante chronograph movement produced by Frédéric Piguet. It is closely related to Cal. FP 1180, which was introduced in 1987 as the thinnest column wheel chronograph movement ever produced.
Cal. FP 1181 includes many high-end features, including a column wheel, vertical clutch, Triovis micrometer regulator, and Kif Ultraflex anti-shock. The rattrapante function is controlled by a pusher at 10:00.