(e.g., E870, H800). It is often part of a longer hyphenated string, like "E870-S123456". The first four characters are what you need. Model Number
If you require the original manufacturer PDF for specifically, contact Citizen customer support directly with the full case number from the back of your watch. They can email you the exact legacy document. citizen eco drive gn4ws12g manual link
completely against the case to restart the timekeeping. Setting the Date Pull the crown out one click to the first position. citizen eco drive gn4ws12g manual link