The Grönefeld 1941 Grönograaf: A Classical Chronograph Masterpiece

The Grönefeld 1941 Grönograaf: A Classical Chronograph Masterpiece

The Grönefeld Legacy

Since their debut in 2008, Bart and Tim Grönefeld have been weaving horological magic. Their creations have garnered prestigious accolades, including the Best Tourbillon award for the Parallax Tourbillon and the Best Men’s Watch award for the 1941 Remontoire. These brothers epitomize excellence and creativity.

Crafting the Chronograph

Designing a chronograph is no small feat. Grönefeld’s approach to the 1941 Grönograaf combines tradition with ingenuity. Here’s what sets this timepiece apart:

  1. Classic Mechanism: The Grönograaf features a lateral clutch and column wheel system – a hallmark of high-end chronographs. This configuration ensures precise timing and smooth operation.
  2. Centrifugal Silent Regulator: At 3 o’clock, an unexpected feature catches the eye – a centrifugal silent regulator with two gold weights. Typically found in minute repeaters, it serves a unique purpose here. It moderates the force required to reset the chronograph hands, resulting in a softer, more controlled action.
  3. Exquisite Craftsmanship: The calibre G-04, comprising 408 meticulously finished parts, is a work of art. The mainplate boasts delicate spotting, while the stainless steel bridges undergo meticulous hand polishing. Black-polished heart-shaped cams, elongated chronograph bridges, gold chatons, and screw-heads add to its allure.
  4. Materials and Limited Editions: The tantalum version (limited to 25 pieces) and stainless steel version (limited to 188 pieces) cater to discerning collectors. Tantalum, denser than stainless steel, offers a unique choice.
  5. Elegance in Design: Off-centered hours and minutes, blued steel lancette hands, and a Breguet-style 30-minute counter grace the dial. The central chronograph seconds hand mirrors the Breguet style, while the instantaneous jumping minutes enhance readability.

Technical Specifications

Calibre: G-04

Movement dimensions: Diameter: 32.0 mm xThickness: 6.15 mm

Number of parts: 408 parts

Power reserve: 48 hours

Power reserve chronograph: 30 hours

Number of jewels: 45 jewels, partially set in solid gold chatons

Chronograph: Column wheel, instantaneous jumping minutes and a soft reset mechanismBalance wheel

Variable-inertia balance wheel with four white gold timing screws (diameter 10 mm)

Frequency: 21,600 vibrations/hour 

Balance spring: Free sprung with Phillips terminal over coil curve with Geneva style stud

Escapement: Jewelled Swiss lever

Main Plate: Spotted and ruthenium electroplated brass main plate

Bridges: Stainless steel, bevels polished by hand, micro-blasted centre.
Circular grain on the top to highlight the bridges shapes and engravings.
Relief engraved Grönefeld logo and the number of jewels

Governor: Governor Speed Regulator at 3 o’clock

The Grönefeld 1941 Grönograaf transcends mere timekeeping. It embodies passion, precision, and the Grönefeld legacy. Whether you’re a seasoned collector or a curious enthusiast, this watch beckons – an invitation to explore the heart of horological excellence.

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