In Addition, it provides a day operate, which is helpful at 3 o'clock. Its sapphire display can't be scratched, retaining the watch Safe and sound from day by day use and tear. The Ballon Bleu using a tourbillon bears the reference amount W6920105 and is the collection's watchmaking masterpiece. Cartier https://www.watchesworld.com/our-watch-picks-for-a-stylish-spring/