It is considered a work of art more than just a watch, having won both the Red Dot Design Award and the German Design Award. The “Full Hollow” design allows you to see every beat and movement of the gears from both the front and the back. 2. Advanced Mechanical Movement Movement Type: Automatic — no battery required; it runs on the motion of your wrist or by manually winding the crown. Accuracy & Continuity: Features 19 jewels to reduce friction, along with a power reserve. Structure & Materials Case: Made of 316L stainless steel, the same grade used in surgical instruments for its strength and corrosion resistance. Glass: 1.2 mm sapphire crystal, an extremely hard material that is highly scratch-resistant compared to regular glass.