Grøne Oldenzaal Horologium: Grönefeld Brothers Launch Attainable Dress Watch at EUR 2,390
The Horological Brothers Make Dress Watchmaking Accessible
The Grönefeld brothers, known as the "Horological Brothers," have built a reputation for superb, high-end, lavishly decorated watches that are highly desirable but not accessible to every collector. In 2024, Tim and Bart Grönefeld created Grøne Oldenzaal as an entry-level brand, and in August 2026, they launched the Horologium — a refined, hand-wound dress watch priced at EUR 2,390.
Design Heritage Meets Modern Accessibility
The Grøne Oldenzaal Horologium shares obvious DNA with the Grönefeld 1941 Principia — the case, dial, hands, markers, and overall style are closely related. The 39mm stainless steel case features the brothers' signature polished concave bezel, brushed flanks, downward-curving stepped lugs, and conical crown. Two sapphire crystals with distinctive orange gaskets add a touch of Dutch character.
The watch comes in two versions: "Quirky" with a vivid Dutch orange center section and baby blue accents, and "Classic" with a sunray-brushed salmon dial. Both feature the Grönefeld's signature heat-blued hands and diamond-cut, high-polished applied markers.
Technical Details
| Specification | Detail |
|---|---|
| Case | 39mm x 10mm, stainless steel |
| Dial | Quirky (orange/blue) or Classic (salmon) |
| Movement | La Joux-Perret hand-wound (G100 base) |
| Power Reserve | 60 hours |
| Water Resistance | 50 meters |
| Crystal | Sapphire with orange gaskets |
| Strap | Leather with contrasting stitching |
| Limited Edition | 188 pieces per variant |
| Price | EUR 2,390 ex. VAT |
Why This Matters for Dress Watch Enthusiasts
The Grøne Oldenzaal Horologium represents a rare combination: haute horlogerie design DNA at an accessible price point. The Grönefeld brothers' reputation for exceptional finishing and attention to detail is evident in the Horologium's diamond-cut plateau for the small seconds, featuring polished, circular brushed, and sandblasted finishes.
The La Joux-Perret hand-wound movement, usually seen in automatic versions, beats at 4Hz and stores approximately 60 hours of power reserve. It is decorated with Geneva stripes, diamond-cut bevels, and blued screws — finishing typically reserved for watches costing several times more.
Released as a limited edition of 188 pieces per variant, the Horologium sold out in under 9 minutes when orders opened on August 13, 2026, demonstrating extraordinary demand for well-designed, attainable dress watches.
The Growing Accessible Luxury Segment
The Grøne Oldenzaal Horologium fits into a broader trend of established luxury brands creating more accessible sub-brands or collections. MB&F's M.A.D.Editions pioneered this approach, and the Grönefeld brothers have followed suit. This strategy allows brands to reach new collectors while maintaining the exclusivity of their main line.
For dress watch enthusiasts, this trend means access to genuine haute horlogerie design and finishing at price points previously unimaginable. At EUR 2,390, the Horologium competes with entry-level offerings from mainstream brands while delivering design pedigree from one of independent watchmaking's most respected duos.
Formal Occasion Suitability
With its 39mm case, 10mm thickness, and hand-wound movement, the Grøne Oldenzaal Horologium is well-proportioned for formal wear. The Classic version's salmon dial and silver-toned accents pair naturally with suits and formal attire, while the heat-blued hands add a subtle touch of color. The 50-meter water resistance provides peace of mind for everyday wear.
Frequently Asked Questions
Is the Grøne Oldenzaal Horologium the same as a Grönefeld 1941 Principia?
While they share design language, the movements are fundamentally different. The 1941 Principia uses Grönefeld's in-house automatic caliber, while the Horologium uses a hand-wound La Joux-Perret movement. The finishing level also differs, reflecting the significant price gap.
Will there be more Grøne Oldenzaal models in the future?
The brand has already released three models since its 2024 launch: the Manueel One, Moment Meter Chronograph, and now the Horologium. Given the strong reception, additional models are likely.
Related Reading
Read our guide to independent watchmaking or explore hand-wound vs. automatic movements to understand what makes the Horologium's caliber special.
According to Monochrome Watches, the Grøne Oldenzaal Horologium sold out in under 9 minutes, demonstrating extraordinary demand for attainable haute horlogerie dress watches. Source: Monochrome Watches