Jaeger-LeCoultre will be hosting an experiential event, "The Valley of Inventions," at Roppongi Hills Cafe in Tokyo from Thursday, October 1st to Tuesday, October 6th, 2026. The event will feature a collection of rare pieces and the latest highly anticipated models. Furthermore, a talk session featuring Masayuki Hirota, editor-in-chief of the watch magazine "Chronos Japan," and Naohiro Hamaguchi, director of the brand's development department, is scheduled for Friday, October 2nd, making this a must-see event for watch enthusiasts.
An experiential event will be held at Roppongi Hills in Tokyo.
From Thursday, October 1st to Tuesday, October 6th, 2026, Jaeger-LeCoultre will host an experiential event, "The Valley of Inventions," at Roppongi Hills Cafe in Tokyo. Focusing on the natural and cultural background of the Vallée de Joux in Switzerland, the brand's birthplace, the event offers a sensory experience of the brand's long-standing tradition of technical expertise and pursuit of precision.
At the venue, visitors can admire up close the delicate enamel decoration and complex mechanism assembly work by visiting watchmakers and craftsmen from the Métiers-Arts workshop. As part of the "Made of Makers" program, they can also enjoy the fusion of watchmaking and culinary artistry through a limited-edition cheese bite devised by two-Michelin-starred chef Gilles Valhone.
The exhibition is organized into four themes: "Chronometry," "Tourbillon," "Multi-axis Tourbillon," and "Complications," showcasing the history of precision pursuit and technological innovation. Rare new and exceptional pieces, including the "Master Hybris Mechanica Ultra-Slim Minute Repeater" and "Vallée des Merveilles," will be on display.
Jaeger-LeCoultre Experiential Event Overview
"The Valley of Inventions"
Date: Thursday, July 2026th, 10 - Tuesday, September 1th, 10
Hours: 11:00 AM - 7:00 PM (may close at 5:00 PM depending on the day)
Location: Roppongi Hills Hills Cafe/Space
Address: Roppongi Hills Hillside 2F, 6-10-1 Roppongi, Minato-ku, Tokyo 106-0032, Japan
Admission: Free
A talk session featuring Naohiro Hamaguchi and Masayuki Hirota will be held! Special invitations are available exclusively for webChronos readers.
On Friday, October 2nd, the second day of the event, a talk session will be held featuring Masayuki Hirota, editor-in-chief of Chronos Japan, and Naohiro Hamaguchi, Director of Product Development at Jaeger-LeCoultre. These two individuals, who have observed the forefront of the watch industry for many years, will passionately discuss the essence of the brand's watchmaking and its historical value from their unique and insightful perspectives.
A special talk show will be held on Friday, October 2nd!
A special talk event featuring Naohiro Hamaguchi, Head of Development at Jaeger-LeCoultre, and Masayuki Hirota, Editor-in-Chief of Chronos magazine, will be held on Friday, October 2nd. This is a special invitation-only event for webChronos readers. Hamaguchi and Hirota will engage in an in-depth discussion in front of exquisite timepieces, an experience that watch enthusiasts will absolutely not want to miss. We encourage you to participate.
Since 2019, he has served as the Director of Product Development at Jaeger-LeCoultre. Having moved to Switzerland in his teens, he has a background in design, improvement, and development at movement manufacturers and brands specializing in complex mechanisms, such as the former Renaud & Papi, Audemars Piguet, and Vaucher Manufacture Fleurier.
[Special Talk Show Overview]
Date: February 10th (Friday)
Time: Doors open at 18:00 / Show starts at 18:30 / Closes at 20:30
Number of people: 30
Location: Roppongi Hills Hills Cafe/Space
Address: Roppongi Hills Hillside 2F, 6-10-1 Roppongi, Minato-ku, Tokyo
Application deadline: Friday, September 18, 2026, 23:59
[Talk show theme]
"Why do inventions come about? Unraveling the 'Valley of Invention'"
Jaeger-LeCoultre's inventions stemmed from the wisdom, curiosity, and ingenuity born out of necessity in the harsh environment of the Vallée de Joux, and this spirit has been passed down for over 190 years. This inventive spirit is driven by the pursuit of "making it more accurate," "making it easier to use," "making it more beautiful," and "how to achieve this." This legacy continues to this day, with Hamaguchi at the forefront, developing new technologies... Hirota delves into the cutting edge of this development.
Application deadline: Friday, September 18, 2026, 23:59
Of particular interest are the "Master Control Chronometry Perpetual Calendar," boasting a highly accurate perpetual calendar mechanism, and the "Cal. 362," equipped with the world's thinnest minute repeater and flying tourbillon. Experts will provide in-depth explanations and behind-the-scenes stories about the development of these complications, which are the culmination of the brand's relentless pursuit of the highest level of precision, and the technical prowess of condensing complex mechanisms into an overwhelmingly thin form.
Automatic (Cal. 868). Power reserve: approximately 70 hours. Stainless steel case (diameter 39mm, thickness 9.2mm). Water resistant to 5 bar. Price: 891,000 yen (tax included).
It features an automatic perpetual calendar movement, with the year and month at the 12 o'clock position, the day of the week at the 3 o'clock position, and the moon phase and date display at the 6 o'clock and 9 o'clock positions, respectively. Manual calendar adjustment will not be required until 2100.
Despite incorporating a complex mechanism, the case is remarkably thin, measuring just 9.2mm thick.
Automatic movement (Cal. 362). 72 jewels. Power reserve approximately 42 hours. 18K rose gold case (41.4mm diameter, 8.25mm thickness). 3 ATM water resistance. Limited edition of 10 pieces worldwide. Price upon inquiry.
The Cal.362 movement, which employs a peripheral rotor, is only 5mm thick. It is the world's thinnest movement equipped with a minute repeater and flying tourbillon.
