To celebrate the company's 10th anniversary, Grönefeld has unveiled the '1941 Decennium Tourbillon'. This timepiece is endowed with an array of features, designed to indulge the desires of watch connoisseurs.
An automatic tourbillon movement ensures the mainspring is optimally wound, resulting in less variation in the rate of the movement. In normal use, the wearer does not need to operate the crown. A self-winding movement confers convenience, making it ideal for daily use.
Measuring 39.5mm in diameter, with a restrained height of 10.5mm, the platinum 1941 case is the epitome of elegance, courtesy of its discreet mien.
The time-consuming creation of each movement means that production will be limited to only 10 examples of the Grönefeld 1941 Decennium Tourbillon.
Movement dimensions Diameter: 32,0 mm Thickness: 5,5 mm
Number of parts 259 parts
Power reserve 56 hours
Number of jewels 30 jewels, partially set in solid gold chatons
Automatic systemUni-directional winding mechanism. For 24 hours of autonomy 633 rotations of the Oscillating mass are required
Oscillating mass Entirely decorated by hand. 22 karat solid gold. Pivoted on a high precision ceramic ball bearing to avoid excessive wear and the need of lubrication
Tourbillon cage One-minute flying tourbillon cage pivoted on ceramic ball bearing.Single arm upper cage bridge. Lower Cage and upper cage are both fabricated in stainless steel
Balance wheelVariable-inertia balance wheel with four white gold timing screws (diameter 10 mm)Frequency21.600 vibrations/hour Balance springFree sprung with Phillips terminal over coil curve with triangle hairspring stud
Escapement Jewelled lateral Swiss lever escapement
Main Plate Spotted and ruthenium electroplated brass main plate
Bridges Stainless steel, bevels polished by hand, micro-blasted center, circular grain on the top to highlight the bridges shapes and relief engravings
IndicatorsCentral hour and minute hands
Case model 1941 Limited edition 10 pieces only
Case material Platinum Pt950
Case dimensions Diameter: 39,5 mm Thickness: 10,5 mm
Water resistance 3 atmospheres – 30 meters – 100 fee
tEngraving Grönefeld, Platinum, Pt950 and serial number
Crown Platinum Pt950, engraved with The Horological Brothers logo
Dial Sterling Silver 925, Matte grey lacquered with highly polished hour-markers and circular sector
Hands Extended Lancette hands. Flame-blued steel and mirror polished centres.StrapMatte black genuine alligator, black stitching and alligator lining. 20mm-18mm
Buckle Platinum Pt950 engraved with Grönefeld. 18mm.
Crystals Domed sapphire crystal on the front with hard anti-reflective coating on both sides
Flat sapphire crystal on the back with hard anti-reflective coating on both sidesNumber of components49 parts
Total weight118 Gramss