The Presage Urushi Byakudan-nuri Limited Edition: SPB085Caliber 6R21Vibrations: 28,800 vibrations per hour (8 beats per second)Power reserve: 45 hoursNumber of jewels: 29SpecificationsStainless steel caseUrushi Byakudan-nuri dial with Maki-eDual-curved sapphire crystal with anti-reflective coatingScrew see-through case backDiameter: 40.5mm, Thickness: 12.8mmWater resistance: 10 barMagnetic resistance: 4,800 A/mCrocodile strap with three-fold clasp with push button release Limited edition of 2,000