The Frédéric Piguet Caliber 1185 is an ultra-thin automatic chronograph movement introduced in 1988. It is renowned for its compact dimensions and sophisticated design, setting a new standard in high-end horology.

Technical Specifications

• Type: Automatic (self-winding) chronograph

• Diameter: 25.60 mm (10¾ lignes)

• Height: 5.55 mm

• Jewels: 37

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

• Power Reserve: Approximately 42 hours

• Functions: Hours, minutes, small seconds, date, chronograph with column wheel and vertical clutch

• Shock Protection: Kif shock protection system

• Balance Wheel: Monometallic, three-legged

• Regulation: Triovis micrometer regulator

Design and Engineering

The Caliber 1185 was the thinnest automatic chronograph movement at the time of its introduction. Its design features a column-wheel chronograph mechanism with a vertical clutch, ensuring precise and smooth operation. The movement's architecture includes a three-quarter plate that conceals most of the chronograph components, contributing to its slim profile. The chronograph system utilizes a one-piece triple reset hammer, and the levers and springs are arranged flat and wide to minimize height.

Applications in Watchmaking

The Caliber 1185 has been utilized in various high-end timepieces, particularly in luxury chronographs. Notably, it has been featured in models by:

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

• Audemars Piguet: Utilized in the Royal Oak Chronograph models, emphasizing the movement's compatibility with refined aesthetics.

• Vacheron Constantin: Featured in their Overseas Chronograph models, highlighting the movement's versatility and appeal among high-end manufacturers.

• Breguet: Used in the Marine Chronograph series, demonstrating the movement's integration into prestigious timepieces.

• Cartier: Applied in select chronograph models, reflecting the movement's adaptability to various watch designs.

Legacy

The Caliber 1185's introduction marked a significant advancement in chronograph movement design, influencing the development of subsequent calibers. Its successor, the Caliber 1186, introduced a rattrapante (split-seconds) complication while maintaining the slim profile, further solidifying Frédéric Piguet's reputation for innovative watchmaking.

Conclusion

The Frédéric Piguet Caliber 1185 exemplifies the pinnacle of ultra-thin automatic chronograph design. Its combination of technical sophistication and elegant aesthetics has made it a preferred choice for luxury timepieces. The movement's influence continues to be seen in modern chronograph calibers, underscoring its lasting impact on the horological industry.