Lubricants are not long-lasting, they do dry over time. An appropriately lubricated watch will work better and longer.
Winding keeps the watch working, and spreads the lubricants.
Don’t forget your watch in a drawer, use it or at least wind it regularly.
A really dirty watch doesn't look good, and sometimes small particles of debris can work their way inside. A little water won't hurt, assuming your crown is fully secure and you avoid getting the leather strap wet.
But never use soap and water. The molecules in the soap can work their way into really small spaces and not help your watch at all.
Don’t change the date on your watch between 9:00 PM and 3:00 AM. You could damage the movement of the watch. If you want to be sure, change the date around 5:00 (AM or PM).
One of the worst enemies of your watch is magnetism fields. Keeping your watch near a strong magnetic field, such as sound amplifiers, will also reduce the accuracy of your watch.
When you are not using your watch, try to keep it in its box or boxes made for watches.
It will be safer, it will take less dust and the strap will remain in its original shape
Watches especially the vintage ones, travels during the years but this doesn’t means that are eternal. Don’t push it to the extreme, try to avoid to use a watch during your sport activities or when you have a shower. watches are good friends, take good care of them and they will not abandon you.