The Citizen Calibre 9000 is a work of genius like no other. With a simple push of a button, the minute repeater chimes the minute, quarter of hour and hour. The Calibre 9000 runs on Eco-drive movement allowing the watch to charge outdoors or in artificial light. The Calibre 9000 embodies the combination of style and technology. 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 hands. Luminous hands and markers. When Fully Charged has a 270 Day Power Reserve. Solid Stainless Steel Case and Black Leather Strap with 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.