When many of these vintage wristwatches were first produced, the greatest electrical / magnetic source in day-to-day life was probably a television set.
After a long day at work, a person might come home at night and then place their timepiece on top of the TV set.
Many vintage timepieces were not equipped with gaskets to prevent exposure to moisture, worse than water is exposure to steam.
You can start your automatic watch by winding it 5-8 complete turns manually before you put it on. An automatic timepiece can be wound indefinitely with no damage to the watch, however, 30 complete 360-degree turns should give it a full wind and any further winding would be unnecessary. How to Set Your Watch Set the time by gently pulling out the crown and turning the crown clockwise or counter-clockwise to set the hands. With these watches you will first need to unscrew the crown, rotating it counterclockwise until it is removed from the tube threads. Date or calendar watches may have additional notches between the winding and setting positions for the purpose of calibrating these functions.
You will then be able to gently pull out the crown to the final notch and set the time as with any other timepiece. This is a patented Rolex ‘Oyster’ screw-down crown.
These oils can potentially react with the metal of your timepiece or enter it and interfere with the delicate balance of oils within your watch.
Magnetism In the modern world, there are many “dangers” to the optimal functioning of your mechanical vintage timepiece (note: quartz watches are immune to magnetism).
Even a slight bang can cause serious damage if impact occurs at the right angle.
Water or Other Fluids Do not expose your vintage watch to water or other fluids.
Turn the crown clockwise until it stops abruptly and cannot be wound any further.
A manual-wind timepiece should be wound until resistance is felt and the crown will no longer turn clockwise, whereas an automatic watch can be found forever without risk of damage.
Most frequently, magnetism is the cause behind a watch running abnormally fast, slow, or stopping altogether.
When most vintage watches were manufactured, people lived in a world with fewer sources of magnetism and electricity — no laptops (huge battery beneath the keyboard), mobile phones (large battery behind the screen), metal detectors at airports or court houses, or even purses with magnetic clasps (many purses today have magnets on the fastener, which your watch will pass by every time your hand reaches in).
After setting the time, screw the crown back on by pushing the crown in toward the case while simultaneously rotating it clockwise. At left, the crown is fully threaded in and locked to the case, it will not wind or set. Caring For Your Mechanical Timepiece Dropping and/or Banging Be mindful when wearing your vintage timepiece not to drop or bang it!