Launched in 2004, the Jaeger-LeCoultre’s Gyrotourbillon 1 wristwatch is a stellar hyper-complicated timepiece developed by master watchmaker Eric Coudray and designer Magali Metrailler. The caliber 177 is composed of 679 individual parts, 117 jewels, and features an array of mechanical displays and complications, including a multi-axis tourbillon, a perpetual calendar with retrograde displays for the date, month, power reserve, and leap year indications. In addition, its movement provides eight days of power reserve and features a "running" equation of time complication that displays the difference between solar time and mean time. Solar time is indicated by the minute hand tipped with a small sun, which sometimes runs ahead or behind the primary minute hand. Both hands are synchronized four times a year.

The pink gold model was launched in 2012 in a limited edition of just 28 timepieces. The present gyrotourbillon, number 5, is offered by the original owner in excellent overall condition and accompanied by its Certificate of Origin, presentation box, and hang tag. When first released, the Gyrotourbillon 1 was the most complicated watch made by Jaeger-LeCoultre. It pushed the boundaries of mechanical watchmaking and opened the door for a new era of complicated timepieces that are not only visually stimulating but also technical marvels that are a joy to contemplate.

CONSIGNED BY THE ORIGINAL OWNER