The Grönefeld 1941 Principia Automatic is offered with an array of dials, all crafted in solid sterling silver. The would-be wearer can choose from a cream lacquered dial with roman numerals, a refreshing matt turquoise or light blue dial with polished applied baton hour markers. Alternatively, the company's rhodium plated or gold plated salmon dials are also available.
The Principia is housed in the company's 1941 case. Named after the year their father Sjef was born, the 1941 case exudes grace from every angle. It is available in red gold, white gold or stainless steel. A sapphire case back has been fitted to confer a spectacular view on the extensively hand finished movement with their well known stainless steel bridges and a 22K solid gold oscillating weight.
Each Grönefeld 1941 Principia is delivered with a high quality, double axis, watch-winder. The gracious motion of the polished stainless steel rings is a delight for the eye and compliments the high quality automatic movement.
place your reservation € 29,950.00 Stainless Steel (excl. taxes)
place your reservation € 37,300.00 Red Gold (excl. taxes)
place your reservation € 38,750.00 White Gold (excl. taxes)
Just as the award winning 1941 Remontoire, Bart and Tim Grönefeld want the 1941 Principia again to appeal to the most discerning watch collectors. It was therefore imperative that the movement was befitting of such a timepiece. The stainless-steel bridges replicate the facades of the Dutch houses, termed 'bell gables', once again, referencing the homeland of the Horological Brothers. The bridges are hand-bevelled, evincing a brilliant gleam and have their jewels set in gold chatons.
The 1941 Principia Automatic is fitted with a 22-karat solid red gold monobloc rotor. The eye-catching oscillating weight is extensively decorated by hand and turns on a ceramic ball bearing, preventing wear and eliminating the need for lubrication.This movement includes a balance wheel, with white gold timing screws, and is equipped with a reliable free-sprung hairspring.
Each movement is finished and assembled by hand. To emphasize the manual labour involved a gold plate, engraved with an individual number, is applied to the movement.
|Movement dimensions||Diameter: 32,0 mm
Thickness: 5,5 mm
|Number of parts||226 parts|
|Power reserve||56 hours|
|Number of jewels||31 jewels, partially set in solid gold chatons|
|Automatic system||Uni-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|
|Balance wheel||Variable-inertia balance wheel with four white gold timing screws (diameter 10 mm)|
|Balance spring||Free sprung with Phillips terminal over coil curve with triangle hairspring stud|
|Escapement||Jewelled Swiss lever|
|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
|Displays||Central hours and minutes
Small seconds at 6 o’clock
|Case dimensions||Diameter: 39,5 mm
Thickness: 10,5 mm
|Water resistance||3 atmospheres – 30 meters – 100 feet|
|Material||White Gold Au750/Pd210 (Non Rhodium plated), Red Gold Au750 5N or Stainless Steel
Engraving: Grönefeld and the individual number
|Dial||Base material: Solid Sterling Silver 925|
|Crown||Case matching material, engraved with The Horological Brothers logo|
|Hands||Extended Lancette hands. Flame-blued steel and mirror polished centres. Small poised seconds hand|
|Strap||A vast variety of leathers and colors are available|
|Buckle||Pin buckle made in Red Gold Au750 5N, White Gold Au750/Pd210 (non rhodium plated) or Stainless Steel 916L engraved with Grönefeld|
|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 sides
|Number of components||54 parts|
|Total weight||Stainless Steel 74 Grams
Red Gold 97 Grams
White Gold 97 Grams