User manual CITIZEN CALIBER NO 2502

[. . . ] * Determination of remaining time: Preset the mark on the register ring to a certain required time, and the remaining time can be read with the ring scale. A B. SPECIAL FEATURES OF YOUR WATCH This instruction book is written for the 200m water resistant diver's watch (Caliber 2502, 2512, 5502, 5512, 6008, 6018) and 800m water resistant professional diver's watch (Caliber 5503) These watches have the following special features. The register ring which is very important for checking diving time, has the added function that prevents it from being rotated in the counterclockwise direction to make it much safer. A register-ring that cannot be turned in the counterclockwise direction. [. . . ] Protective Packings · Packings incorporated in this watch (for its caseback, crown and glass) prevent entering of water, dust and other foreign matters into the watch to protect its functions. Periodical replacement of these packings (every 2 years approximately) is recommended since they may become subject to brittleness and/or their elasticity may decrease after long time use. Use for diving Be sure to check the following points when you use this watch for diving. Before diving · Isn't it a time to replace the power cell?· There are no scatches in the wrist band and no cracks nor chipped portions in the glass of the watch. After diving · Wash the watch with fresh water to prevent rust formation due to sea water. Watch Band · If the watch band shows cracks, replace it with a new band. · When replacing the watch band, also replace the spring bars connecting the watch and band. Temperature Avoid exposing the watch to direct sunlight or leaving it in extremely hot or cold locations for a long period of time. · This will cause malfuctioning and shorten the life of the battery. · This may cause your watch to gain or lose time and affect its other functions. Shock · This watch will withstand the bumps and jars normally occured in daily use and while playing such non-contact sports as golf and catchball. · Dropping the wathc on the floor or otherwise imparting severe shock to it may cause malfunctioning or damage. Magnetic Fields This watch is antimagnetic up to 60 gauss and not affected by the magnetic fields produced by ordinary household electric appliances. If used in the immediate vicinity of strong magnetism, however, the watch's functions may temporarily be affected. Static Electricity The integrated circuits use in the watch are sensitive to static electricity. If exposed to intense static electricity, the watch's display may lose its accuracy. Chemicals and Gases Avoid wearing the watch in the presence of strong chemicals or gases. If the watch comes in contact with such solvents as thinner and benzine or products containing materials such as gasoline, polish detergent or adhesive, its components may discolour, disslove, or crack. The watchcase or band may discolour if they come in contact with mercury from a broken thermometer or other equipment. Natural Light The luminous paint used for this watch emits no hazardous radiation at all, and is not harmful to human beings or to the environment. It emits light stored during exposure to daylight or artificial light. (For example: if you place the watch under 500-lux light source, such as an ordinary desk lamp, for more than 10 minutes, it will emit light for about three to five hours). [. . . ] If your watch has the "next date the battery should be changed" stamped on the back, we recommend that you change the battery before this date. 4. Battery replacement of the professional diver's watch (Caliber 5503). · This watch's battery needs to be replaced at the Citizen Service Centre only. · The Service Centre will check water resistance and replace packings if necessary at the time of battery replacement. [. . . ]