The first watch in the world made by combining 3D printing and carbon fiber: the stiffness and lightness of carbon are combined with the elegance and simplicity of nature, in an eternal marriage that makes this watch worthy of the name it bears: Aion. The case, bezel and caseback are made one by one through a long, high-precision 3D printing process using a natural polymer filled with carbon fibers. DIMENSIONS: Ø40 mm CASE MATERIAL: AionComposite® (layers of carbon microfibers and PLA) MOVEMENT: Cal. Seiko NH35A Automatic • Jewels: 24 rubies • Hourly alternations: 21,600 bph • Power reserve: 41 hours • Automatic winding: Bi-directional • Machine stop: Yes • Manual winding: Yes • Functions: Hours, minutes, seconds, date GLASS: Sapphire or mineral glass of your choice WATER RESISTANCE: 3 ATM * STRAP: Ultralight PU leather with guilloche effect and stainless steel clasp with logo