Hublot, Big Bang, Model: 301.SX.130.RX Automatic Mechanical Men's Wristwatch. 44mm diameter red chronograph hour hand 1. Dial: Matte black dial, Arabic numeral hour markers, red chronograph seconds hand decorated with tachometer outer ring; Three-eye chronograph sub-dial ◦ 3 o 'clock position: 30-minute counter with a date window ◦ 6 o 'clock position: 12-hour counter ◦ 9 o 'clock position: Regular small seconds dial Appearance features: Signature exposed hexagonal screws, dual chronograph pushers, double-layer composite case, with extremely strong sporty recognition. • Traditional horizontal clutch timing structure, stable calibration and low failure rate; The plate features Hublot's signature hollowed-out finish, and the transparent back cover allows for a view of the movement. The silicon hairspring is anti-magnetic, ensuring stable timekeeping during daily wear.