Ateliers de Monaco Grand Tourbillon XP Ronde d’Or

The new Ateliers de Monaco Grand Tourbillon XP Ronde d’Or limited edition model seems to be based on their last year’s Black Casino “only watch.”

Powered by the same patented XP (stands for Xtreme Precision) 1-minute tourbillon movement with silicium escape wheel and lever, the watch demonstrates pretty much impressive tolerance of 0-2 seconds in 24 hours.

Besides the silicium escapement, this terrific accuracy is also achieved with a number of hi-tech production methods that, among others, include the deep reactive-ion etching technology that was originally developed for microelectromechanical systems and DRAM memory circuits.

Ateliers de Monaco Grand Tourbillon XP Ronde d’Or sports almost identical dial layout, however its delicate movement is nevertheless enclosed in a more mainstream round case measuring 43 mm in diameter and healthy 13 mm in height.

Made of 31 parts, the case features a titanium core and is covered with brushed and polished white gold side panels. Its display case back covered with a sapphire glass provides good view at hand-decorated movement with de Monaco’s unique 18-carat solid gold rotor.

The Monaco-based watch manufacture is going to limit the Ronde d’Or production at mere 18 copies.

Photos: Ateliers de Monaco

Ateliers de Monaco Grand Tourbillon XP Ronde d’Or watch specification

Price range: N/A
Movement: XP 1-minute Tourbillon, automatic, in-house, hand-engraved, 28,800 vph, sapphire tourbillon bridge
Complications: 1-minute tourbillon
Power reserve: N/A
Case material: White gold, 18-carat
Bezel material: White gold
Case shape: Round
Transparent case back: Yes, sapphire glass
Case size: 43 mm
Case height: 13 mm
Dial: Dark gray with white gold elements, partially skeletonized
Hands: White gold
Water resistance: 30 meters
Strap: Hand-stitched black alligator strap with 18K gold folding buckle
Crystal: Sapphire