Cintree Curvex Perpetual Calendar 5850 QP24 is an automatic using the Franck Muller 2800 caliber which compromises of the FM base and QP Dubois Depraz 5100 exclusive module. It has 47hour autonomy and is balanced for 28,800vph. The 21 jewels are of diameter 26.3mm with thickness of 3.6mm. It comes with flat balanced-spring and eccentric screw regulation.
Equipped with Incabloc shock absorber system, this beveled piece is decorated with Cotes de Geneve and has circular graining patterns accompanied by blued screws. The functions include hour, minute, seconds, and 24-hour. The perpetual calendar shows date, day, month, year and moonphase.

The two-piece 18K yellow-gold case comes in tonneau shape which is anatomically curved. The size is 38x32mm and has a thickness of 11.5mm. It comes with curved sapphire crystal. The back is fastened by 4 screws. It comes with hand-stitched crocodile leather strap with gold clasp.
The silvered dial is grained and curved with printed Arabic numerals and Stuart hands in blued steel. The indications include date at 3 with moonphase at 6 and 24-hour at 8. The day of the week sits at 9 with month and four-year at 12.
It is also available with black dial and luminescent Arabic numerals with bracelet. Other case available are white gold, pink gold, red gold, or platinum with strap or bracelet.
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