What's More, it provides a day functionality, which can be useful at 3 o'clock. Its sapphire display screen cannot be scratched, keeping the watch Protected from every day dress in and tear. The Ballon Bleu having a tourbillon bears the reference selection W6920105 and is the collection's watchmaking masterpiece. Cartier https://www.watchesworld.com/our-watch-picks-for-a-stylish-spring/