Citizen Men's BL9000-59F ( BL9000 ) Calibre 9000 Collection. Perpetual Calendar Automatically Adjusts for Odd and Even Months and Leap Years through 2100. Minute repeater function. How the repeater chime function works: Press and hold the button at the 2 o'clock position until it starts to chime. First you will hear one long tone for each hour, then each quarter hour have a quick double chime, then each minute will have single short tones. For example, if the time is 2:48, you will hear two long chimes for the hour, then 3 quick double chimes to indicate 45 minutes (three 15 minute periods), bringing the time to 2:45, then 3 quick chimes for 3 minutes past the last quarter hour, indicating 48 minutes after 2. The minute repeater does not differentiate between AM or PM time. Eco-Drive Technology - Charges in Sunlight or Indoors - No Batteries to Change. White Dial with black outer dial and silver tone hands. Luminous hands and markers. When Fully Charged has a 270 Day Power Reserve. Solid Stainless Steel Case and bracelet. Hidden push-button deployment clasp. Dual Time. 2 Alarms. Low Charge Indicator & Time Reset Advisory in the Event it Ever Needs Charging. Non-reflective scratch-resistant mineral crystal. Water resistant to 30m. Case measures 42mm wide by 14mm thick.