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What must I do to ensure that my OMEGA watch provides 
me with excellent service for many years?
Magnetic fields: avoid contact with magnets, or putting your watch 
on top of loudspeakers, refrigerators or magnetic cases for iPads or 
other tablets, since such objects generate magnetic fields which could 
disturb the functions of your watch. Watches that include Master 
Co-Axial or Master Chronometer in their name are unaffected by 
magnetic fields up to 15,000 gauss (1.5 tesla).
Swimming in the sea: always rinse your watch with fresh water 
afterwards.
Shocks: whether physical, thermal or other, avoid them.
Screw-down crown: screw the crown down carefully to prevent 
water from penetrating the case.
Non screw-down crown: push it back against the case into the 
wearing position to prevent moisture from entering the case.
Cleaning: for metal bracelets, rubber straps and water-resistant cases, 
 
use a toothbrush and soapy water for cleaning and dry with a soft cloth.
Chemical products: avoid direct contact with solvents, detergents, 
perfumes, cosmetics, insect repellents, etc., since they may damage 
the bracelet, case or gaskets.
Temperature: avoid exposure to extreme temperatures (greater 
than 60°C, or 140°F, less than 0°C, or 32°F) or extreme temperature 
changes.
Water-resistance: a watch’s water-resistance cannot be permanently 
guaranteed. It may notably be affected by the ageing of gaskets or by 
an accidental shock to the crown. As stipulated in our service instruc
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tions, we recommend you have the water resistance of your watch 
checked once a year by an authorised OMEGA Service Centre. 
Chronograph push-pieces: do not operate chronograph pushers 
 
under water in order to prevent water entering the mechanism. 
Exception: The Seamaster 300 m and 600 m Chronographs have 
 
pushers which function under water.
Special recommendations
1 Introduction