Citizen Perpetual Calendar Chronograph Eco-Drive Mens Watch BL5250-11L/BL5250-02LCitizen Perpetual Calendar Chronograph Eco Drive Mens Watch BL5250 11L BL5250 02LA marvelous yet very user friendly, little piece of technology. Spot on accuracy, it roughly strays into the +10 seconds every 3 months (by atomic measures). This watch is a perfect balance of an edgy feel and a freshness capturing a bold spirit. Its looks are built to sustain through varying trends. The high contrast (white on black dark navy blue) enhances readability