Raymond Weil ? Nabucco Cello Tourbillon Movement: Mechanical ? RW1842 ? tourbillon at 6 o?clock Winding: Manual Power reserve: 105 hours Jewels: 27 Functions: Watch Hours, minutes Tourbillon at 6 o?clock Case: Titanium and polished steel with black PVD coating, carbon fiber Diameter: 46mm Thickness: 15.25mm Bezel: Five lines of the musical stave decoration Crown: Steel, screwed down ? fluted with RW monogram Crysta:l Sapphire crystal with dual-sided antiglare treatment Dial: Black with indexes and cello strings decoration Hands: Hours / Minutes: Boston-shaped and diamond-tipped steel hands with luminescent highlights, bow-shaped endpoint Case back: Screwed-down, with sapphire crystal Strap: Genuine black niloticus crocodile strap, equipped with a RW titanium and polished steel folding clasp with double push security system Water resistance: 20 ATM zdroj - http://www.watchmundi.com/2015/04/24/raymond-weil-nabucco-cello-tourbillon/