Have worn the clock around 1.5 years and was always satisfied. The clock has a high accuracy and is easy to read. Finally, the Crown left me no longer screw it properly, which is important for water tightness. It is a diver's watch and I wanted to continue to put in the water. In short, sent within the two-year warranty the clock and wakes up angry. Citizen wrote to me that I would have damaged the clock qusi willfully (the thread of the cap is screwed up as I should because please turn to come and get it still broken?) And the repair would cost (see price of the clock !! !!) me 130 Euro , I know this experience is very subjective and has not so much to do with the clock, which is actually very good, although I understand under warranty otherwise.