news

AWARDS

05
May
2026

BART AND TIM UNVEIL THE 1941 QUADRIVIUM

Bart and Tim Grönefeld were pleased to exhibit at the record-breaking 2026 edition of Watches and Wonders, held from 14 to 20 April in Geneva. A total of 60,000 visitors from across the globe attended this year’s showcase of horological novelties. At the Grönefeld booth, Bart and Tim, together with the fourth generation, presented the “7 Sins” project, created in collaboration with master engraver Kees Engelbarts. This exceptional set of seven unique watches has since found a new owner. Yet this remarkable project was not the only new creation from the Grönefeld brothers…

After years of sustained demand for some of its most celebrated and now discontinued timepieces, including the One Hertz, the Parallax Tourbillon, and the Remontoire, Grönefeld introduces a new pinnacle of complicated high horology: the Grönefeld 1941 Quadrivium. “Quadrivium” originates in classical scholarship: arithmetic, geometry, music, and astronomy, four foundational disciplines understood as an integrated whole. Here, it alludes to the four mechanical complications that define this timepiece. Bringing together the essence of these iconic creations, the 1941 Quadrivium unites four of the brand’s most admired complications within a single, extraordinary watch. Developed entirely from the ground up, it features a 7.5-seconds remontoire, a one-minute flying tourbillon, central jumping seconds, and a power reserve indicator, all driven by a movement equipped with serially connected concentric twin barrels. It is both a technical and artistic achievement, already earning the affectionate nickname: “Grönefeld’s Greatest Hits.” Crafted with the utmost precision and attention to detail, the Premiere Edition will be limited to 28 pieces, each housed in a 1941 tantalum case measuring 40.0 mm in diameter and 11.3 mm in height. Following the delivery of the Premiere Edition, a limited series of 28 pieces in platinum is also planned. In a rare preview, the 1941 Quadrivium was presented under strict embargo during Watches and Wonders Geneva to a select group of collectors and members of the press. As the timepiece was completed just one day prior to the exhibition, no official photography was available at that time, and guests were kindly asked not to take photographs. This deliberate decision allowed Grönefeld to offer an exclusive first look while preserving the impact of the official imagery, which will be unveiled during the online press release scheduled for the end of 2026.

DESCRIPTION OF THE 1941 QUADRIVIUM

  • The case follows the 1941 design language (as seen in the Grönograaf)
  • 40.0 mm in diameter and 11.3 mm in height
  • Frosted main dial with hand-bevelled stainless steel elements and polished, multi-faceted white gold hour markers
  • Blued steel hands
  • Raised one-minute flying tourbillon cage at 6 o’clock
  • Exposed governor rotating every 7.5 seconds at 9 o’clock
  • Large central jumping seconds hand
  • Power reserve indicator (50 hours) at 10 o’clock
  • Hours and minutes displayed at 2 o’clock
  • Sapphire exhibition case back revealing the elaborately finished movement and its 473 components
  • Premiere Edition of 28 pieces in tantalum, followed by a limited edition of 28 pieces in platinum

With prices of €280,000 in tantalum and €310,000 in platinum (excluding taxes), the 1941 Quadrivium reflects the exceptional craftsmanship and complexity behind its creation.Deliveries of the Premiere Edition are scheduled to commence between late 2026 and early 2027.

If this 1941 Quadrivium awakened your interest, please contact Bart and Tim at info@gronefeld.com. Please do not ask for pictures. Pictures will be available at the end of the year.

Source

Making the best watches in the world. We love every aspect of it. Coming up with new ideas together, bringing them to life in a design that captures the imagination, working with infinite patience to achieve perfection: it is a blessing to be able to work together every day with so much pleasure.

the horological brothers

Making the best watches in the world. We love every aspect of it. Coming up with new ideas together, bringing them to life in a design that captures the imagination, working with infinite patience to achieve perfection: it is a blessing to be able to work together every day with so much pleasure.

the horological brothers