Sicura Jump Hour men's wristwatch, manufactured in the 1970s. These watches are known for their "Space Age" design and unique mechanical "digital" display with jumping hour and rotating minute discs. Sicura (a Swiss brand whose owner later bought Breitling). The case and chain are made of stainless steel. SWISS MADE,STAINLESS STEEL BACK,BASE METAL BEZEL,WATER-RESISTANT,SHOCKRESISTANT Mechanical with manual winding, with 17 jewels, as indicated on the dial. "Jump Hour" style, showing the hours on the left ("H") and the date on the right ("D") in windows, while the central hand and disc show the passing minutes. These watches are collector's items, prized for their retro style and connection to Breitling history. Working ! No original box No documents Will be carefully packed !