GRÖNEFELD – PARALLAX Tourbillon Platinum – Unique piece NEW
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AN UNIQUE GRÖNEFELD PARALLAX IN PLATINUM
In October 2014 the horological brother Bart and Tim Grönefeld were laureated by the international jury of the Grand Prix d’Horlogerie de Genève. The Parallax Tourbillon was awarded “best tourbillon” in its class.
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The Grönefeld Parallax Tourbillon features a “flying” tourbillon with a large central seconds hand, stop seconds, a power reserve- and winding-setting mechanism indicator. The hand finished movement displays sophistication and craftsmanship at the very highest level.
FLYING TOURBILLON
Well-designed and impeccably executed tourbillons are particularly accurate timekeepers. The flying tourbillon allows full appreciation of the concentric, rhythmic “breathing” of the balance hairspring, while ensuring high precision.
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Bart and Tim Grönefeld further highlighted the tourbillon by raising it out of the movement and above the dial. As with the immaculately finished movement bridges, the tourbillon cage is crafted in stainless steel. Three days are required just for the hand finishing of the tourbillon components.
LARGE CENTRAL SECONDS
The precision of the Parallax Tourbillon is evidenced by the large central seconds hand. Normally a central seconds hand requires a friction spring to prevent small fluttering caused by play in the gear train.
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For the Parallax Tourbillon, the Grönefeld brothers developed the movement with an added pinion and wheel so that the energy-sapping friction spring is not required: A feature improving power transfer to the regulator and contributing to the precision and impressive power reserve of 72-hours.
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PUSH-ONLY CROWN AND FUNCTION INDICATOR
In addition to the flying tourbillon and friction-spring-free central seconds, the Parallax Tourbillon has yet another innovative feature: rather than pulling the crown to set the time, which has the risk of damaging the fragile crown stem, it is pressed.
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An indicator on the dial displays the function selected: “W” for Winding or “S” for time setting. When the time setting function is selected, both tourbillon cage bridge and the central seconds hand automatically return to their respective 12 o’clock positions and stop (or hack) while the time is set.
STAINLESS STEEL BRIDGES
For this unique piece Bart and Tim Grönefeld made special blackened stainless steel bridges for this unique movement to enhance the contrast. As well as the superior hardness and durability of stainless steel compared to standard brass or nickel, the metal absolutely gleams when polished to a mirror finish. And as stainless steel does not oxidize, the gleaming finish lasts and lasts.
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GRÖNEFELD HISTORY
The Grönefeld family has a history spanning for more than a hundred years in watchmaking. Bart and Tim Grönefeld are the third generation to continue the family tradition, which was founded by Johan Grönefeld in 1912. After a long career working for the most prestigious Swiss watch manufacturers, the Grönefeld brothers presented their first watch, a Tourbillon Minute Repeater, in 2008. They followed this in 2010 with their award-winning One Hertz, first in-house developed caliber. Grönefeld timepieces stand out for the innovation of their technical features, the clarity of their design and the excellence of their craftsmanship.
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Technical Specifications
Model: Grönefeld Parallax Tourbillon in Platinum – Unique piece
Features and indications
Flying one minute Tourbillon
Hours and minutes
Central seconds
Power reserve and Winding-Setting indicator
Innovative Winding-Setting Mechanism with Hacking Seconds
In-house caliber G-03
Case and dial
Case material: Platinum Pt950.
Engraving: Grönefeld, Unique Piece and Platinum
Case dimensions: 43 mm x 12.5 mm
Sapphire Crystals: Top domed with anti-reflective treatment both sides; flat display back with antireflective treatment on both sides
Water resistance: 3atm/30m/100 feet
Crown: White gold with engraved “G” logo and push to set/wind function
Dial:
Solid Sterling Silver 925, Black ruthenium plated frosted surface with orange print.
Hours-Minutes dial, power reserve indicator, setting-winding indicator. ,
Raised seconds dial to minimalize a parallax error
Hands: Polished extended steel Lancette hands. Large counter poised seconds hand
Strap and buckle:
Orange thread hand-sewn matte black alligator leather and platinum buckle with engraved Grönefeld logo
Movement
Caliber G-03:
Mechanical hand winding, flying one-minute stainless steel tourbillon, power-reserve indicator, hacking seconds and setting mechanism indicator.
Dimensions: 34mm (15 1/4 ’’’) x 9.5 mm
Number of parts: 278
Number of jewels: 27 jewels set in solid gold chatons
Power reserve: 72 hours
Balance wheel: 10 mm free sprung balance wheel Balance frequency: 21’600 vph / 3Hz
Balance spring: Phillips terminal over-coil curve, Geneva-style stud. ELINVAR spring by Nivarox®
Escapement: Straight Swiss lever escapement
Main Plate: Hand spotted rhodium-plated nickel silver
Bridges: Stainless steel and beveled an polished by hand, micro-blasted, circular grain on the top, relief engraved on micro blasted surface
Winding-Setting mechanism: Push function crown for selecting winding or setting
Power reserve mechanism: Classic Breguet style by means of a cone moving up and down on the threaded barrel arbor
PRICE
€ 160.000,00 Excluding Taxes
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