Grönefeld’s 1941 family has become one of the clearest expressions of modern independent watchmaking, where traditional finishing meets a distinctly architectural movement language.
The new 1941 Quadrivium pushes that identity into more ambitious territory, pairing the brothers’ constant-force expertise with a flying tourbillon and jumping seconds display.
It’s a serious technical watch, but also a very Grönefeld one, with much of the theatre placed where it can be seen on the dial.
At a glance
- Grönefeld has unveiled the 1941 Quadrivium, a hand-wound remontoire tourbillon within its established 1941 case family.
- The watch combines a 7.5-second remontoire, one-minute flying tourbillon, central jumping seconds and a power reserve display.
- The tantalum Premiere Edition is limited to 28 pieces at EUR 280,000 before taxes, with a 28-piece platinum edition priced at EUR 310,000 before taxes.
The 1941 case gains new technical weight
Tim and Bart Grönefeld have built much of their recent catalogue around the 1941 case, a shape defined by flowing lines, a concave bezel and lug profile, and sculpted case flanks.
For the Quadrivium, that familiar silhouette is offered in tantalum for the Premiere Edition, with a platinum version also planned.
The proportions remain wearable for a highly complicated independent watch, at 40mm across and 11.30mm thick.
Those dimensions don’t tell the full physical story, though, as both tantalum and platinum bring notable density and wrist presence.
Sapphire crystals are fitted front and back, and the case is completed by the brand’s polished conical crown.
A dial built around visible mechanics
The Quadrivium’s dial follows Grönefeld’s layered style, using a frosted main surface and separate hand-bevelled stainless steel elements to frame the displays and mechanisms.
The example shown uses a soft champagne tone, while five base dial colours are planned in total.
Hours and minutes sit off-centre between 12 and 3 o’clock, with polished multi-faceted white gold hour markers and blued steel hands.
A power reserve indicator occupies the upper-left portion of the dial, while two lower cartouches carry the watch number and the remontoire tourbillon designation.
The real visual hierarchy belongs to three kinetic elements.
At 6 o’clock, a raised one-minute flying tourbillon uses a hand-finished three-spoke stainless steel cage and includes a smooth stop at the 60-second position, functioning as a zero-reset system.
At 9 o’clock, the exposed governor for the remontoire rotates once every 7.5 seconds, giving the constant-force mechanism a visible pulse.
Running centrally is a jumping seconds hand, a deadbeat seconds display that reinforces the watch’s chronometric character rather than serving as a decorative flourish.
The remontoire and tourbillon work as a single system
The hand-wound movement builds on the architectural language that has become closely associated with Grönefeld, but the Quadrivium adds a more demanding regulating package.
Its 7.5-second remontoire is designed to supply energy to the escapement in more consistent portions, reducing the influence of declining mainspring torque as the watch runs.
Here, that constant-force mechanism works in partnership with the tourbillon, while the dial-side governor helps control the release of energy and soften shocks through the gear train.
The calibre comprises 473 components and 49 jewels, with concentric twin barrels connected in series for a 50-hour power reserve.
Turn the watch over and the finishing is unmistakably Grönefeld, with steel bridges, dark-coated micro-blasted recesses, polished anglage, black-polished steel components and gold chatons holding large rubies.
The triangular bridge forms around the periphery are a nod to old Dutch houses, while a long transversal bridge gives the movement a strong horizontal axis.
Details & Specifications
| Brand | Grönefeld |
|---|---|
| Model | 1941 Quadrivium Remontoire Tourbillon |
| Case size | 40mm diameter, 11.30mm thickness |
| Case material | Tantalum for the Premiere Edition, platinum edition planned |
| Crystal | Sapphire crystals front and back |
| Dial | Frosted main dial with hand-bevelled stainless steel elements and polished multi-faceted white gold hour markers |
| Hands | Blued steel |
| Movement | In-house hand-wound calibre |
| Components | 473 |
| Jewels | 49 |
| Complications | 7.5-second remontoire, one-minute flying tourbillon, central jumping seconds, power reserve indication, tourbillon stop and reset seconds |
| Power reserve | 50 hours |
| Barrels | Concentric twin barrels connected in series |
| Strap | Leather strap with matching tantalum or platinum buckle |
| Availability | Tantalum Premiere Edition limited to 28 pieces, with deliveries scheduled to begin in 2027; platinum edition limited to 28 pieces |
| Price | EUR 280,000 in tantalum and EUR 310,000 in platinum, excluding taxes |
A collector’s watch with visible intent
The 1941 Quadrivium is not simply a tourbillon added to an existing design language.
It places the remontoire, governor, flying tourbillon and jumping seconds into a coherent mechanical scene, making the energy management of the watch part of the daily experience.
For collectors drawn to independent watchmaking, that’s the appeal here.
The Quadrivium feels like a statement of technical confidence from a small atelier that has spent years refining the 1941 platform, and its limited production in tantalum and platinum should keep it firmly in the realm of serious connoisseurship.
