Purity Wavy HMS (Non-Mirror)

【Key Features】
• Unique Movement: Equipped with the “Stairway To Heaven HMS” manual-winding movement, precisely adjusted for high accuracy.
• Lightweight and Durable Case: Crafted from grade 5 titanium with a transparent DLC coating, it is scratch- and impact-resistant.
• Limited Edition: Limited to just 99 pieces, it is highly sought after by collectors.

【Movement】
The 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
• Diameter: 40mm
• Thickness: 13mm
• 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
• Caliber: ArtyA Purity Stairway To Heaven HMS (In-House)
• 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