Miyota 0S80

The Miyota caliber 0S80 is a quartz chronograph movement with an alarm, manufactured in Japan. It claims accuracy of +/-20 seconds per month and uses an SR927W battery. The movement features a chronograph with a central seconds hand and a 24-hour counter, plus an alarm that sounds when the hour hand aligns with the alarm hand. The alarm chirps for 15 seconds every three minutes for up to three cycles. This combination of chronograph and alarm functions makes the 0S80 relatively uncommon among quartz movements. It appears in various fashion and sports watches from brands that source Miyota movements.