JB's new product, the latest masterpiece, IWC Little Prince Pilot Series IW590302 watch, constant-power tourbillon!!! 1⃣️ Exclusively developed 94850 movement, power reserve up to 80 hours, restore the three functions of the original: (1): Constant-power tourbillon device. (2): Moon phase display at 1 o'clock. (3): Power reserve display. 2⃣️ Case: Designed according to the original one-to-one depiction. Restore the original three-piece set: Whether it is the front and back of the case, the side of the case and the arc brushed process are perfectly synchronized with the original. The diameter is 46.2mm and the thickness is 13.5mm. 3⃣️ Sapphire arched mirror. 4⃣️ Hands: JB factory spared no expense, from design to mold opening, style, and inspection many times to achieve the same three-dimensional hands as the original. 5⃣️Strap: Made of Italian black cowhide crocodile pattern strap, hand-stitched, with details in place, paired with IWC original folding clasp, the buckle surface has clear fonts, and restores authentic details.