U-Boat Chimera Carbonio GMT Chronograph Limited Edition Watch# 7177 (Men Watch). Band Color: Brown. Dial Color: Black. Display Type: Chronograph. Item Shape: Round Shape. Band Material: Leather. BandLength: Men Standard. Case: Diameter 48 mm. Case body, back case, bezel ring in forged carbon, characterized by high strengh and lightness. Clasp Type: Buckle. Bezel Function: Stationary. Crystal: Sapphire. Water Resistant Depth: 50 meters. Movement : GMT automatic mechanical chronograph personalized to U-Boat specifications for date display and stem to be positioned at 9 o’clock, second time zone. Frequency: 28.800 vibrations per hour, 4 Hz. Power reserve: 48 hours. 25 jewels. Height: 7,9 mm. Calendar Type: Date. Limited Edition: 199 units. Model Number: 7177 717 71 7.