503 Ronda Watch Movement

The Ronda Powertech quartz movement is a three-hand (hour, minute, sweep seconds) gents movement made with Swiss parts, measuring 10½ lignes (23.30 mm in diameter) and 2.00 mm in overall height, with a movement height classification of H1. It features one jewel, nickel plates, operates on a 371 battery, and uses standard hand dimensions of 120/70/20 for the hour, minute, and seconds hands. The most accurate way to determine the correct movement height when replacing a movement is to measure the height of the hour wheel on the original movement; in the case of an H1 movement, the hour wheel height is 1.75 mm.