Gravity is defied with the Rotonde de Cartier Watches Astroregulateur.

Montre Rotonde de Cartier Astroregulateur, calibre 9800 MC © Laziz Hamani

The Astroregulateur Movement Defies The Force Of Gravity

For the 21st edition of the SIHH, Cartier fine watchmaking defies the future with the Rotonde de Cartier Astroregulateur watch fitted with the 9800 MC calibre. This revolutionary movement counteracts the effects of gravity on timing accuracy in vertical positions, thanks to the unusual positioning of the balance and seconds hand on a micro-rotor located on the dial side.

Rotonde de Cartier Astroregulateur watch, calibre 9800 MC:

Case in niobium-titanium

Diameter: 50 mm

Circular-grained crown in titanium adorned with a sapphire cabochon

Sapphire crystal

Sapphire crystal case back

Water resistance: 30 metres

Black alligator-skin strap

Double adjustable folding clasp in 18 carat white gold

Limited series of 50 individually numbered timepieces released worldwide

Montre Rotonde de Cartier Astroregulateur, calibre 9800 MC © Laziz Hamani

Calibre 9800 MC, Astroregulateur:

Manufacture mechanical self-winding movement

Diameter: 15 ¾ lines, (35.8 mm)

Thickness: 10.1 mm

Number of jewels: 43

Number of parts: 281

Balance: 21,600 vibrations/hour

Power reserve: approx. 80 hours

Individually numbered movement.