ウブロさんのインスタグラム写真 - (ウブロInstagram)「Hublot's engineers and chemists have achieved the perfect fusion of movement and case with a transparent material that reveals the watch's heart while providing robust protection. They have become experts in synthetic sapphire, transforming each watch into a unique work of art. The sapphire is meticulously crafted as a monocrystalline block for 9 days at an uninterrupted 2050°C to achieve impeccable transparency. #Hublot」7月22日 23時00分