Ronda 706-4

Ronda caliber 706-4 is a Swiss-made quartz chronograph movement with moon phase complication. It features hacking seconds—when the crown is pulled out to the time-setting position, the second hand stops and the movement enters a power-saving mode that reduces battery consumption by approximately 70%. The movement uses an SR920SW battery with an expected life of 60 months,, and claims accuracy of 20 seconds per month. The caliber was part of Ronda's normtech line and is now discontinued.