Vintage Noblia Perpetual World Timer Watch VERY RARE

In 1985 the Zen Noblia Ultra Slim watch was introduced as a model by Citizen Watches. From 1986 to 1997 Citizen offered watches under the Noblia brand. These were in the high-priced segment and combined a traditional-classical design with modern quartz movements. Noblia was an outfitter and sponsor of the Louis Vuitton Cup and the Star North American Championship. Noblia was discontinued in 1997 after releasing a collection of ceramic clocks. This watch is a perpetual calander. Once seen, a perpetual calendar is a calendar valid for many years, usually designed to look up the day of the week for a given date in the past or future. There are two push buttons on either side of the crown and one pusher on the opposite side. I found a You Tube video that explains how to set the calendar. You can search citizen 6720 on youtube there will be videos of this or similar watch like 6700 etc. The case size is 42mm and the lug width is 20mm. The watch shows minor signs of wear, but is in excellent condition for its age. This watch is a vintage show piece. I have seen very few Noblias like this one for sale. It's very rare and still looks good and keeps time. Wear this Noblia and wear a little piece of history. Thanks for looking