I have this watch and enjoy the Eco Drive and atomic clock update features, BUT, the mineral crystal scrathes too easily. If you are an average person, you can count on sending this watch to Citizen to get the crystal replaced. AND, Citizen does not offer a sapphire crystal for this model or my Blackfaced Navihawk. Over the years, I have had five crystals replace on my Blue Angel and Navihawk watches. Sad quality deficiency to the most visible part of their watches! The crystal! An unnecessary weakness to superbly functional timepieces! Please see the pit mark in the mineral crystal of my watch. Citizen must work to improve the quality of these crystals!