Ronde Chronograph Perpetual Bi-Retrograde is a mechanical automatic using the Franck Muller BR caliber 5888, which is equipped with chronograph and calendar module. It has power reserve of 45 hours & consists of 45 jewels.
It vibrates at 21600vph with a flat balanced-spring and shock absorber system. Its rotor is in platinum that is hand finished and in blued screws.
It comes in 18k brushed white gold with a diameter of 40mm and thickness of 12.7mm. It has curved sapphire crystal and 2 white gold pushers and a crown. The case has 4 correctors on the fluted middle and with snap-on back.
It has water resistant up to 3atm (3m). The strap is made of hand-stitched crocodile leather with white-gold clasp.
The dial is in black flinque pattern. Its silvered subdials and hour ring are decorated with circular beads. The hands are luminescent made of blued steel.
It has date and day of the week with off-center retrograde hand. The minute counter is at 3, moonphase at 6, the month and four-year cycle at 12, and the minute track has divisions of 1/5 second.
It is also available with silvered dial with bracelet in yellow, red, pink or gold platinum, with leather strap or bracelet.
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