The Frédéric Piguet Caliber 615 is a renowned automatic mechanical movement known for its remarkably slim design and precise engineering. Introduced in 1995, it was among the thinnest automatic calibers available at the time, setting a high standard for ultra-thin watch movements.

Technical Specifications

• Type: Automatic (self-winding)

• Diameter: Approximately 15.7 mm (6¾ lignes)

• Height: Around 2.10 mm

• Jewels: 21

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

• Power Reserve: Approximately 40 hours

• Winding Direction: Clockwise

• Turns Per Day: About 650

Design and Engineering

The Caliber 615 achieves its ultra-thin profile through meticulous design, featuring an off-center winding rotor that allows for a compact yet functional movement. Despite its slimness, it incorporates 21 jewels positioned to reduce friction and wear. Operating at 21,600 vibrations per hour, it offers smooth and accurate timekeeping. Its approximately 40-hour power reserve ensures reliable performance throughout the day.

Applications in Watchmaking

This caliber has been favored by prestigious watch brands for use in luxury dress watches where slimness and elegance are crucial. It has been incorporated in models by well-known manufacturers such as Cartier and Chopard. The movement’s design is especially suited to thin cases, making it ideal for refined timepieces like the Cartier Tank Basculante from the Collection Privée Cartier Paris line.

Maintenance and Longevity

Thanks to its high-quality construction and thoughtful engineering, the Frédéric Piguet 615 is known for durability and long service life. Its straightforward architecture allows skilled watchmakers to service and maintain the movement effectively. Spare parts remain available through specialized suppliers, supporting restoration and upkeep of watches powered by this caliber.

Conclusion

The Frédéric Piguet Caliber 615 is a benchmark in ultra-thin automatic mechanical movements. It combines technical innovation with reliable performance and elegant design, making it a preferred choice in the luxury watch segment. For collectors and enthusiasts, it represents a seamless blend of mechanical excellence and refined aesthetics, securing its lasting legacy in fine horology.