0S21 Miyota Quartz Watch Movement is a Multi-Function Chronograph movement with 2 pushers. 3 hand movement (hour/minute/chronograph seconds) with 2 indicators and a date window at the 4:30 position. The indicator at the 3 o'clock position records 24 hours, and the indicator at the 9 o'clock position records minutes. 

Details:

• Caliber Number 0S21 
• Type Quartz
• Replaces Caliber Citizen 0510
• Size 13.50”’ (30.80mm) diameter x 5.10mm thick
• Battery Cell Number SR927W
• Frequency 32,768Hz
• Jewels None
• Stem 065-453
• Quartz Type Tuning fork type quartz crystal
• Hand dimensions are 120/70/17/26 (h/m/s/indicators)
• Functions Hours, minutes, central chronograph seconds, 60 minute counter, 24 hour hand, date
• Country of Manufacture Japan