World time wristwatch with alarm functionIWC SCHAFFHAUSEN. Reference no. 3821, case no. 2531800. Titanium. ø 40 mm. 48 grams. Porsche design. Quartz movement. Caliber 643. shock protected. Water resistant to 30 meters. Sapphire crystal, black dial. Large second hand, alarm hand, date window. Circumferential 24-hour ring. Bezel with city ring moving on both sides. Crown screwed at 8. Original leather strap with pin buckle. Warranty card, instruction manual. Original box, carton Watch not working, service needed. * Partner auction Bergmann. Provenance : estate of a private collection. Sold by watch store Andreas Huber, Munich 1997. .