The Frédéric Piguet Caliber 15 is an ultra-thin mechanical movement developed in the 1950s, renowned for its slim profile and precision. Designed primarily as a pocket watch caliber, it has been utilized in various high-end timepieces, particularly in dress watches where slimness and elegance are paramount.

Technical Specifications

• Type: Manual winding

• Diameter: Approximately 36.10 mm (1.42 inches)

• Height: Around 1.90 mm

• Jewels: 20

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

• Power Reserve: Approximately 43 hours

• Functions: Hours and minutes

• Adjustments: Adjusted to 5 positions

Design and Engineering

The Caliber 15 is characterized by its ultra-thin construction, measuring just 1.90 mm in height. This slim profile is achieved through meticulous engineering, allowing for a compact design without compromising functionality. The movement operates at a frequency of 21,600 vibrations per hour, ensuring smooth timekeeping. With a power reserve of approximately 43 hours, it offers reliable performance for daily wear.

Despite its slimness, the Caliber 15 incorporates 20 jewels, strategically placed to reduce friction and enhance durability. The movement's architecture includes a clean and efficient gear train, contributing to its reliability and ease of servicing.

Applications in Watchmaking

The Caliber 15 has been utilized in various high-end timepieces, particularly in dress watches where slimness and elegance are paramount. Notably, it has been featured in models by prestigious brands such as:

• Rolex: Utilized in select pocket watch models, showcasing the movement's versatility and appeal among high-end manufacturers.

• Andersen Genève: Incorporated into their Grande Jour et Nuit Edition 2014, emphasizing the movement's compatibility with refined aesthetics.

Its ultra-thin architecture and reliable performance make the Caliber 15 a favorite choice for watchmakers who seek to combine mechanical tradition with contemporary design constraints.

Maintenance and Longevity

The Caliber 15, thanks to its robust construction and use of high-quality materials, offers excellent longevity when properly maintained. Its straightforward mechanical design allows skilled watchmakers to service and repair it effectively. Parts for the movement, while specialized, are available through authorized suppliers and vintage watch parts dealers, ensuring that collectors and owners can keep these watches running smoothly for decades.

Conclusion

The Frédéric Piguet Caliber 15 stands as a testament to Swiss watchmaking excellence, combining ultra-thin design with reliable performance. Its application in luxury timepieces underscores its status as a preferred choice for high-end dress watches. For enthusiasts and collectors, the Caliber 15 represents a harmonious blend of technical prowess and aesthetic elegance, solidifying its place in the legacy of fine horology.