Do you have a question about the Casio 3503 and is the answer not in the manual?
Details the watch's alarm function.
Explains the stopwatch functionality.
Step-by-step guide to set time and date.
Instructions for setting the alarm time.
Guide to using the stopwatch for timing.
Guidelines for watch water resistance levels and use.
General advice for keeping the watch clean and in good condition.
Information about the battery included at purchase.
Indicators and actions for low battery power.