Ronda 519S

The Ronda 519S is a Swiss quartz movement with a big date complication displaying the date in double digits. It has 1 jewel, measures 3.0mm in height, and achieves an accuracy of -10 to +20 seconds per month. The movement belongs to the Powertech 500 family and is based on the caliber 519. The big date requires manual correction each month since it advances beyond 31 to 39 before cycling to 00 and then 01. Production has ended; Mondaine used this caliber in some watches.