Friday, July 24, 2015

AkriviA Tourbillon Regulator

Crafted by Swiss watch maker Rexhep Rexhepi, the AkriviA Tourbillon Regulator successfully alliances minimalist exteriors with an haute horlogerie complication. The broad lugs are chamfered in a manner reflecting the bevelling on the calibre; the grey dial features a “polished-matt” finish that is both vintage and innovative. While it recalls the sandblasted bridges of pocket watches, the AkriviA “polished-matt” effect differs from habitual sandblasting in terms of its means of application: the crushed stone is mixed with vegetable oil and applied using a new handcrafted technique.

The only fanciful aspect of the dial is the regulator-type arrangement of its indication, with the hours counter at 12 o’clock, the central axis bearing the minutes hand only, and the seconds hand fixed to the tourbillon at 6 o’clock. The latter is indeed the only clue to the exceptional nature of this timepiece: the austerity of the exterior finishes highlights the wealth of finishes lavished on the movement. This simple dial opening reveals a bridge featuring eight inward angles and which bears the escapement block.
The latter is composed of a 13.7mm carriage revolving in one minute and housing a Breguet balance-spring connected to the “AkriviA” balance wheel oscillating at the rate of 21,600 vibrations per hour. The 100 hours of autonomy is supplied by a single barrel. The 11.6mm “AkriviA” balance wheel features four spokes forming a “Quadriskell”, with four fine-adjustment inertia-blocks at the end of each. The purpose of putting in place these various devices is to have the Tourbillon Regulator certified by two institutions: the COSC and the Poinçon de Genève.
With this in mind, the elaborate nature of the movement finishes is the exact opposite of the outward austerity: the movement features 50 inward angles and is entirely decorated on both visible and hidden parts: domed chamfering, handcrafted Côtes de Genève, circular graining, straight graining. This AK-04 calibre was both developed and finished entirely by Rexhep Rexhepi and his team.

One of its major characteristics is its complete symmetry: it nobly comprises two third wheels so as to ensure optimal visual balance. This rare construction, combined with a high level of finishing, reflects Rexhep Rexhepi’s perfectionism: nothing is left to chance and nothing is done just because it has to be.

Technical details

Manually wound movement
Diameter: 30.00mm
Thickness: 7.60mm
Power Reserve 100 hours
Nb of components 229
Nb of jewels 22
Balance Wheel Diameter: 11.60mm
Frequency 21’600 vph
Tourbillon Diameter: 13.70mm - Weight: 0.36g – Swiss anchor escapement – 60 seconds rotation
Decoration: Inward angles, black polish, côtes de Genève, hand graining, hand polishing, rhodium finishing, manual circular graining, hand engraved

Hours located in the small dial at 12h, central minutes hand, small second at 6h
Chiming at every hour and silence function on/off by 3h monopusher

Diameter: 43mm
Thickness: 12.90
Case composed of 30 parts
Front and back sapphire glass crystal with anti-reflective treatment
Water Resistance 3 ATM

Grey steel «mat-polish» dial
Hand Steel bleui hands - “AkriviA” special design

Hand-sewn leather blue strap
Clasp: Clasp/deployment with hand-engraved AkriviA logo

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