PIERRE DEROCHE – GrandCliff TNT Royal Retro


While this complication has been introduced to provide an element of fun, it also reveals a totally original approach : all the retrograde hands in this model are driven by gears rather than cams and, thanks to a strip-spring that has replaced the classical balance-spring system, return to their initial positions after “passing on the baton” to the next retrograde hand. This innovation facilitates adjustment and enhances shock resistance.


Visible movement :
Automatic, exclusive Dubois Dépraz calibre, 58 jewels. Decorated, engraved gold oscillating weight (22 K). 12-pivot central bridge and 6 chamfered and satin-finished seconds bridges
in gold (18 K). Moving retrograde hand indicators. Minute wheel with Pierre DeRoche logo. Hand affixed by a transversal pin. 6 retrograde seconds hands on gears; strip-spring return. Date at 6 o’clock.

Case :
Black PVD titanium middle, steel bezel, 18 K pink gold horns, crown-shield and crown, 47.5 mm in diameter.

Functions :
Hours, minutes, retrograde seconds in six 10-second sectors, date.

Strap :
Crocodile with 18 K pink gold safety folding clasp.

Limited edition :
Series of 21 for the version with pink gold.

Other version :
Titanium and steel case in a limited edition of 201 pieces.


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