For setting the date, either pull out the crown to the first engagement or use the adequate button, depending on the model. Please be aware that you might have to move the date manually to the first of the following month if the month has only 30 days; the same applies to watches with a large date, where the date is shown by two indicators. Note: Never adjust the date between 11 pm and 4 am. During this time span the date function shifts. A manual intervention during this time can cause damage to the movement. If a manual adjustment of the date is unavoidable during this time, first change the time to any time out of this time span, then change the date and afterwards re-change the time again.