: 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
Press to cycle through seconds, hour, minutes, year, and date. Use D and B to change values. Press A again to save and exit. Casio Wr100m Manual Pdf
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 : Your watch is suitable for swimming, snorkeling,
Most WR100M models (like the Edifice or SGW series) follow a standard button layout: (top left), B (top right), C (bottom left), and D (bottom right). Time Setting : B (top right)