【Key Features】
• Equipped with the sculptural “Stairway to Heaven” movement. The escapement, positioned as if floating in the middle, forms the visual and technical centerpiece of the watch.
• Ultra-hard titanium case (DLC-treated). Grade 5 titanium is coated with clear or black DLC, providing a hardness of up to 1,800HV and making it resistant to scratches, impacts, and fingerprints.
• Mirror-finished case back. The one-way mirror finish accentuates the depth and three-dimensionality of the movement, concealing the wrist while beautifully showcasing the interior.
• Independence with complete in-house design and manufacturing. From the case to the movement, everything is designed and manufactured in Switzerland, in Geneva and the Jura region. Embrace the philosophy and aesthetic of an independent brand.

【Movement】
The Curvy Stairway To Heaven HMS movement is ArtyA’s latest in-house caliber, combining visual beauty with technical excellence. Key features include:
• Manual-winding Movement: Utilizing a traditional manual winding mechanism, it provides an appealing operating experience for watch enthusiasts.
• 4Hz Frequency: Operates at a rate of 4 vibrations per second (28,800 vph) for high precision.
• Twin-barrel design: Two barrels operate in parallel, ensuring a more stable energy supply. A long, slender spring ensures smooth winding and sustained power supply.
• “Star-ized” escapement: Located at the center of the movement, it creates the visual effect of appearing to float in mid-air.
• Fine-tuning mechanism: Precision is optimized by adjusting the balance wheel’s inertia. Peripheral weights (inertia blocks) are used to maintain a stable oscillation of the balance spring.
• Hand-finished: The minute wheel train and balance bridge are micro-bead frosted and hand-chamfered for a refined aesthetic.

【Technical Specifications】
Case
• Material: Grade 5 Titanium (Satin Finish), Mirror Finish
• Coating: Clear or Black DLC Protective Coating
• Size: 38,5mm x 43mm
• Thickness: 12mm
• Water Resistance: 5 ATM

Case Back
• Features: Screw-down case back, engraved,

Crystal
• Material: Sapphire
• Coating: Triple Anti-Reflective Coating
• Features: Laser-Engraved Chapter Ring

Movement
• ArtyA manufacture Curvy Purity STH HMS movement (In-House)
• Caliber: PUR-HMS2
• Winding: Manual
• Display: Hours, minutes, central seconds
• Power Reserve: Minimum 72 hours (due to twin barrels)
• Frequency: 4Hz (28,800 vph)
• Fine Adjustment: Precision adjustment via balance wheel inertia block
• Minute Wheel Train & Balance Bridge: Microbead Frosted
• Hand-Beveled
• Polished mainspring for optimal barrel assembly friction

Strap
• Material: Alligator or Grained Buck leather

Place of Origin
• Swiss-made (designed and manufactured in Geneva and the Swiss Jura region)

Edition
• Limited to 99 pieces

¥5,280,000

(Delivery costs, duty and tax are not included in the price. They will be added to the price as total cost.)

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