The Horological Brothers, Bart and Tim Grönefeld announce bespoke dials and a new case material for their award winning Grönefeld 1941 Remontoire timepiece. Netherlands based Grönefeld brothers have partnered with renowned master watchmaker Kari Voutilainen to realise these new editions of high-end, technical timepieces under 1941 Remontoire line.
Grönefeld is able to offer a vast choice of coloured and patterned dials. The dials are engine-turned, sometimes referred to as guilloché dials. This process confers each dial with its own unique appearance. To augment the allure of the engine-turned patterns, another even more exclusive technique can be applied, enamelling. The colourful and transparent enamel is applied to the dial surface to bestow a profound depth and lustre to the guilloché patterns.
Because enamel is glass, not paint, it does not fade under ultraviolet light and will keep its lustre for years, decades or even centuries to come. Specialist Inès Hamaguchi is responsible for the delicate enamelling of the Grönefeld dials.
Model: Grönefeld 1941 Remontoire
Hand-wound Mechanical Movement, Calibre G-05
8 Seconds Remontoire Mechanism
Diameter: 32,0 mm
Thickness: 5,5 mm
Number of parts: 258 parts
Number of jewels: 36 jewels, partially set in solid gold chatons
Power reserve: 36 hours with constant force (stop system)
Remontoire: To optimize time keeping a small hairspring is wound every 8 seconds to guarantee a constant force for the escapement. A complex satellite gearing mechanism with hypocycloidal gears, twin ball bearings, pinions and jewelled levers, achieve this.
Balance 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 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 centre; Circular grain on the top to highlight the bridges shapes and engravings; Relief engraved Grönefeld logo, number of jewels and eight seconds remontoire
Hacking seconds: In setting mode the hacking seconds mechanism will be activated
Central Hours and Minutes
Small Seconds at 6 o’clock
Governor speed regulator at 9 o’clock
Stainless Steel 916L, White Gold Au750/Pd150 (Non Rhodium plated) or Red Gold Au750 5N
Domed sapphire crystal on the front with hard antireflective coating on both sides
Flat sapphire crystal on the back with hard antireflective coating on both sides
Engraving: Grönefeld and the individual number
8 gold or stainless steel security screws
Diameter: 39,5 mm
Thickness: 10,5 mm
Water resistance: 3 atmospheres – 30 meters – 100 feet
Crown: Stainless steel, White gold Au750/Pd150 (Non Rhodium plated) or Red gold Au750 5N engraved with logo
Sterling Silver 925, Guilloché dials are handmade.
Hands: Extended Lancette hands. Flame-blued steel and mirror polished centres. Small poised seconds hand
Hand-sewn ostrich leather with Stainless steel, White Gold Au750/Pd150 or Red Gold Au750 5N buckle Engraved with Grönefeld logo
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