Seiko Epson VX32E

VX32E is an Epson slim analog quartz movement with central hours, minutes and seconds and a quick-setting date calendar. Its official outside diameter is 24.00 mm with 21.30 × 21.50 mm flats; casing diameter is 23.30 mm with the same flats. Height is 2.62 mm including the battery. It uses an SR920SW cell with approximately three years of battery life. Its tuning-fork oscillator operates at 32,768 Hz and rated accuracy is ±20 seconds per month.