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Parallax Tourbillon

Platinum
a unique piece

description movement specifications
Unique Parallax Pt front
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Unique Parallax Pt

The Grönefeld Parallax tourbillon features a “flying” tourbillon with a large central seconds hand, stop seconds, power reserve indicator and winding-setting function indicator. The in-house movement, beautiful solid silver dial and highly polished case display sophistication and craftsmanship at the very highest level. The raised flying tourbillon allows full appreciation of the concentric, rhythmic“breathing” of the balance hairspring, while ensuring high precision. The name “Parallax” is derived from the precision of the readability of the central seconds hand. Parallax is defined as the apparent change in position of an object when the observer changes his own position.

The Grönefeld Parallax Tourbillon was awarded the prestigious Grand Prix d'Horlogerie de Genève for the best watch in the tourbillon categorie.

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Calibre G-03

This unique Parallax Tourbillon has special contrasting bridges. A highly-polished stainless steel sleeve around the tourbillon draws further attention to the beautiful escapement by reflecting the oscillating balance wheel and the rotations of the escape wheel and tourbillon cage. Normally a central seconds hand requires a friction spring to prevent small fluttering caused by play in the gear train. But 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. The latter feature improves power transfer to the regulator, contributing to the impressive power-72-hour power reserve.

Calibre G-03

Technical specifications

Movement

Calibre G-03 Flying tourbillon, synchronized hacking seconds, hand-wound mechanical movement, push-to-wind/push-to-set crown, power reserve indicator, function indicator setting
No. of parts 278 components
No. of jewels 29 jewels set in gold chatons
Power reserve 72 hours
Gearing Direct gear train to avoid a friction spring for the center seconds hand by means of an additional wheel and pinion
Tourbillon One-minute flying tourbillon cage pivoted on ceramic ball bearings
Upper Cage Bridge with single arm. Fabricated in stainless steel
Lower Cage fabricated in stainless steel
Balance wheel Variable-inertia balance wheel with timing screws (diameter 10 mm)
Frequency 21’600 vibrations/hour
Balance spring Free sprung with Phillips terminal overcoil curve, Geneva-style stud
Escapement Lateral Swiss lever escapement
Main Plate Spotted and snailed rhodium plated nickel silver
Bridges Stainless steel X46 Cr13, bevels polished by hand, micro-blasted centre and spotted underneath
Circular grain on the top
Relief engraved in the micro blasted surface
Winding-setting Crown with push function to chose between winding or setting
Hacking seconds In setting position the cage and seconds-hand will stop at 60 seconds

Case and dial

N° of components 68 parts
Case Platinum Pt950. One Pieces Only 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, Unique Piece White gold security screws Polished bezel and centre band with hand-finished straight graining
Case dimensions Diameter: 43 mm
Thickness: 12.5 mm
Water resistance 3 atmosphere – 30 meters – 100 feet
Crown White gold rhodium plated engraved with “G” logo and push to set/wind function
Dial Solid Sterling Silver 925, Black with orange print, Frosted surface Hour- Minutes dial, raised Seconds Dial Power reserve indicator Setting-winding indicator
Indications Small hours and minutes at 1 o’clock Visible tourbillon cage at 7 o’clock Large center seconds on a raised seconds dial to minimalize parallax error Power Reserve indicator Winding - Setting indicator
Hands Extended Lancette hands. Domed polished steel and mirror polished centres. Small poised seconds hand
Power reserve indicator Classic Breguet mechanism by means of a cone moving up and down on a treaded barrel arbor
Strap Hand-sewn mat black with orange stitching, alligator leather with White gold Au750 buckle, engraved with Grönefeld logo. 22mm-18mm

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Bart
Making the best watches in the world. We love every aspect of it. Coming up with new ideas together, bringing them to life in a design that captures the imagination, working with infinite patience to achieve perfection: it is a blessing to be able to work together every day with so much pleasure.

Handtekeningen
Tim
BartTim
Making the best watches in the world. We love every aspect of it. Coming up with new ideas together, bringing them to life in a design that captures the imagination, working with infinite patience to achieve perfection: it is a blessing to be able to work together every day with so much pleasure.
Handtekeningen