Avoid leaving your watch near electromagnetic sources, as they may affect the operation of your timepiece.
Use a toothbrush and soapy water to clean metal bracelets and waterproof casings, then rinse with fresh water. Dry with a soft cloth.
Always rinse your watch with fresh water after contact with salt water.
Avoid direct contact with solvents, detergents, perfume, cosmetics, etc., which could damage the bracelet, casing or seals.
A watch's water resistant properties cannot be guaranteed indefinitely. They can be affected by seal wear or accidental shock. We recommend that you have your watch's water resistance tested once a year by an authorised Longines service centre.
Avoid subjecting your watch to shocks, including sudden changes in temperature.
Avoid exposing your watch to extreme temperatures (less than 0°C or 32°F and more than 60°C or 140°F) and sudden changes of temperature.
Before immersing your watch in water, make sure the crown is carefully screwed down to ensure no water enters the mechanism.
Always push the crown back into the neutral position to ensure no water enters the mechanism.
Do not operate the pushers under water, or water may enter the mechanism.