U-Boat 7797 Classico 47 Bronze Wristwatch Innovative crown release system (patented) at 8 o’clock for easy time and date setting. MOVEMENT: swiss automatic mechanical, personalized to U-BOAT technical specifications. Skeleton balance wheel. Frequency: 28,800 vibrations per hour. Power reserve: 38 hours. 25 Jewels. FUNCTIONS: hours, minutes, seconds, date. CASE: in aged bronze, distinguishing crown on left side, with a patented protective device. Diameter 47mm. Serial number engraved on a small plate fixed on the side of the case. BACK: screwed in, fume glass showing the movement, special anticorrosive antiqued treatment. DIAL: three superimposed layers, matt black with visible ruby. Luminous beige hands, numbers and markers. CRYSTAL: high quality sapphire with anti reflective treatment. WATER RESISTANCE: 100 mt, 10 ATM. STRAP: brown calf leather, tongue buckle in bronze special anticorrosive antiqued treatment. Width: 23/22 mm. The untreated bronze has a natural changing of its shades with time, this makes each watch one of a kind. Classico 47 in naturally aged bronze. Uncoated bronze, material naturally changing with time, making each timepiece unique. Handmade strap according ancient and traditional techniques of Florentine tanning. We are a U-Boat UK authorised dealer Brand new boxed stock with full retail boxes & paperwork 2 year warranty Call Or Message For Delivery Estimate