What should I do to ensure that my watch continues to provide excellent service for many years?
Magnetic fields: avoid placing your watch on speakers or refrigerators, since these have strong magnetic fields.
Bathing in the sea: always rinse your watch with warm water afterwards.
Shocks: whether thermal or other, avoid them.
Screw-in-crown: screw it in carefully to ensure that no water enters the mechanism.
Cleaning: for metal bracelets and for all water resistant cases use a toothbrush with soapy water and a soft cloth for drying.
Chemical products: avoid direct contact with solvents, detergents, perfumes, cosmetic products etc., since they may damage the bracelet, the case or the gaskets.
Temperatures: avoid extreme temperatures above 60°C or 140°F below 0°C or 32°F or extreme temperature changes.
Chronograph push-pieces: Do not operate chronograph pushers under water in order to prevent water entering the mechanism.
Exception: The Seamaster 300M and 600M chronographs have pushers which can function under water.