If you have a vintage Rolex Datejust manufactured prior to the introduction of Caliber 3035, then your particular model is a non-quickset Datejust. To set the date and time on a Non-Quickset Rolex Datejust, follow these steps:Unscrew the winding crown by turning it counterclockwise until it releases from the case.Turn the crown clockwise around 25 times to manually wind the watch (it’s always a good idea to hand-wind the watch while setting it even if it is an automatic movement).Pull the crown out to the last notch.Rotate the crown to advance the timekeeping hands. Keep turning until the correct date appears in the date window. When the correct date appears, you are now in AM hours; now set the time accordingly taking into consideration if it is currently AM or PM.Push the crown all the way back in and screw it down to the case.To set the date and time on a Quickset Rolex Datejust, follow these steps:Unscrew the winding crown by turning it counterclockwise until it releases from the case Turn the crown clockwise around 25 times to manually wind the watch (it’s always a good idea to hand-wind the watch while setting it even if it is an automatic)Pull the crown out one notch to set the date (the timekeeping hands will continue to run in this position).Rotate the crown to adjust the date. We recommend setting the date to the day before today.Pull the crown out to the last notch to set the time. Rotate the crown to move the hands past midnight so that today’s date appears in the window. You are now in AM hours; now set the time accordingly taking into consideration if it is currently AM or PMPush the crown all the way back in and screw it down to the case.Always remember to keep the winding crown on your Rolex watch screwed down onto the case if you not adjusting the time and date to protect the watch from moisture and dust. Also, never unscrew the crown if you are in or around.
