MATHEY TISSOT 18K GOLD MOONPHASE WATCH: Solid 18k gold case with an A Schield 1802N caliber movement with 17 jewels. The movement is an automatic wind with TRIPLE DATE and MOONPHASE. The dial is in fair condition, showing some aging. The case is a heavy weight 18K case with 2 push buttons on the side for adjusting the calendar. The movement is currently not running and needs to be cleaned. The case is in very good condition.