Water-resistance: A hard knock might cause the watch to lose its water-resistance without you realising it. Therefore, if you plan to use your watch underwater (swimming but especially rinsing or showering), it is important to have the water-resistance checked regularly.
Change of battery: Be careful when changing the battery of your watch. There is a risk of damaging the movement.
Cleaning: For all bracelets (except leather and delicate straps) and for all water resistant watch cases use a toothbrush with soapy water and then a soft cloth for drying.
Bathing in the sea: Always rinse your watch with lukewarm water afterwards. Sea water especially affects the leather quality.
Magnetic fields: Avoid placing your watch on speakers or other electrical motors with strong magnetic fields as they can affect the running of your Swatch watch.
Shocks: A hard knock might cause diverse damages to your watch. Therefore avoid all types of shocks, including thermal shocks.
Temperatures: Avoid extreme temperatures above 60C or 140 F, below -10C or 14F or extreme temperature changes.
Date change: The date of the Swatch watch changes between 11 PM and 3 AM. Therefore do not adjust the date function during this time. It could seriously damage the watch movement.
Polish the glass: Scratches on your synthetic glass can disappear by polishing it. Use polish cream (or abrasive dental fresh) or go to your Swatch retailer who will refresh your watch.
Chemical products: Avoid direct contact with solvents, detergents, mosquito repellent, perfumes, sun creams or other cosmetic and chemical products since they may damage the bracelet, the watch case, the glass or other synthetic parts of your Swatch watch.
And finally... if you have a problem with your Swatch watch, please contact your nearest Swatch retailer.