Once you have that number, you can download the correct Official Casio Manual for free from the Casio Support Archive. General Operation for 4-Button Casio Watches
Go to product viewer dialog for this item. " refers to a watch's 100-meter water resistance rating, it is not a specific model name. To find the exact PDF manual for your watch, you need to locate the typically found inside a rectangular box on the back of the watch case. Casio Wr100m Manual Pdf
Hold in Timekeeping Mode until the seconds flash. Once you have that number, you can download
: Your watch is suitable for swimming, snorkeling, and poolside diving but should not be used for scuba diving or high-speed water sports like jet-skiing. Operation Guide 437/438/3208 - CASIO To find the exact PDF manual for your
Press to cycle through seconds, hour, minutes, year, and date. Use D and B to change values. Press A again to save and exit.