It had been also the initial to possess a sapphire crystal, the main to become watertight to 300m, and the last to have a matte dial. In fact, some really late run ref. Piaget Blue and gray is often beautifully versatile dial decisions, much too. The gray-dialed Piaget Polo S https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/