The Frédéric Piguet Caliber 1181 is an ultra-thin manual-winding chronograph movement introduced in 1988. It is a derivative of the Caliber 1180, notable for its incorporation of a rattrapante (split-seconds) complication, making it one of the thinnest rattrapante chronograph movements ever produced.

Technical Specifications

• Type: Manual winding chronograph with rattrapante (split-seconds) function

• Diameter: Approximately 26.2 mm

• Height: Approximately 5.35 mm

• Jewels: 29

• Frequency: 21,600 vibrations per hour (3 Hz)

• Power Reserve: Approximately 45 hours

• Functions: Hours, minutes, small seconds, chronograph with rattrapante, and date

• Shock Protection: Kif shock protection system

• Balance Wheel: Monometallic, three-legged

• Regulation: Triovis micrometer regulator

Design and Engineering

The Caliber 1181 is distinguished by its slim profile, achieved through meticulous engineering. It features a column-wheel chronograph mechanism, a vertical clutch for precise engagement, and a Triovis micrometer regulator for fine adjustment. The inclusion of a rattrapante function allows for the timing of multiple events simultaneously, with the ability to capture intermediate times without stopping the main chronograph hand.

Applications in Watchmaking

The Caliber 1181 has been utilized in high-end timepieces that prioritize both functionality and elegance. Notably, it has been featured in models by:

• Blancpain: Incorporated into their rattrapante chronograph models, showcasing the movement's application in luxury watchmaking.

• Jaeger-LeCoultre: Utilized in select models, emphasizing the movement's versatility and appeal among high-end manufacturers.

Maintenance and Longevity

Due to its quality construction and thoughtful design, the Frédéric Piguet 1181 is known for its longevity and reliability. Watchmakers appreciate its straightforward architecture, which facilitates servicing and maintenance. Components for the Caliber 1181 are available through specialized retailers, ensuring that the movement can be properly maintained and restored.

Conclusion

The Frédéric Piguet Caliber 1181 stands as a testament to Swiss watchmaking excellence, combining ultra-thin design with the complex functionality of a rattrapante chronograph. Its application in luxury timepieces underscores its status as a preferred choice for high-end watches. For enthusiasts and collectors, the Caliber 1181 represents a harmonious blend of technical prowess and aesthetic elegance, solidifying its place in the legacy of fine horology.