It was also the 1st to have a sapphire crystal, the 1st to generally be water resistant to 300m, and the final to have a matte dial. In truth, some very late run ref. Piaget Blue and grey is usually splendidly functional dial options, way too. The grey-dialed Piaget Polo https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/