78 Jewels, Sapphire Case, 237 Hour Power Reserve by 4N

In the 4N SAPPHIRE PLANET François Quentin, founder and designer of 4N wanted to bring an evolution in the design of the watch 4N MTV-01 across a new case in Sapphire.  Other watches done with Sapphire cases are the Richard Mille RM056 Black-SV and Red-SV, Hublot MP-05 LaFerrari Sapphire, H. Moser & Cie. SFr1 Million Venturer Tourbillon Dual Time Sapphire Skeleton, Hublot Big Bang Unico Sapphire, MB&F HM2, and the Cecil Purnell Mirage

The concept behind the 4N SAPPHIRE PLANET was to promote, across transparency, the mechanical movement with manual winding developed with APRP who issues 237 h of power reserve and to be able to admire a big number of 514 components decorated at the hand, which it is made.

Its exclusive mechanism of the hours and minutes jump can so be admired, every minute, according to different angles, and show the tremendous complexity of the kinematics of discs such planets in motion. Created as an avant-garde answer to the evolution of the design of the numerical watches, 4N proves with the SAPPHIRE PLANET that it is possible to link clarity, elegance and technical nature, with a perpetual visual show.

"I wanted to create a new case Sapphire to set in majesty the movement with his exceptional tridimensional architecture. The idea was to highlight the mechanism, offer a setting that allows plunge into the heart of the mechanism. Transparency was the key to this new project" explains François Quentin.

François Quentin worked in close cooperation with FashionLab 3D of Dassault Systèmes to work out this new model, across tools 3D CATIA. Objective was to compromise with at the same time this new material and these visual effects, but also to anticipate optic aberration by the form of the case. The technical challenge was also huge, the case sapphire is manufactured in one piece included the glass. Hundreds of the hours are necessary for the machining of one case.

The 4N SAPPHIRE PLANET is an edition limited to 3 pieces, completely customizable by colour and the markings on the intermediate glass.
Technical data :

· Monobloc sapphire case and sapphire back cover
· Jumping minutes and hours
· Digital display by disc
· Double barrels
· Screwed balance D : 9.12 mm
· Breguet overcoil balance-spring
· Cadence : 21 600 Alt/hour, 514 parts, 78 jewels
· Power reserve 237 hours
· Quick hours corrector
· Easy strap switch
· crown and push-piece white gold
· strap alligator and white gold
· Finishing : all parts finely decorated
· public price : 280 000 €



Cecil Purnell - Mirage (Sapphire Crystal Case)


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