Technically, Casio still produces the 3721 module, as it continues to manufacture the GA-100 series. However, the GA-100 is slowly being phased out in favor of newer, solar-powered (Tough Solar) and Bluetooth modules (like the 5593 or 5601).
: Many models using this module, like the Overland OVW-100, feature a rugged military look with large luminous indices, sword hands, and often a canvas or titanium strap. casio 3721
The 3721 is not just a simple digital timekeeper; it represents a bridge between the purely digital watches of the 1980s and the analog-digital "triple sensor" giants that would follow later. It is a testament to an era when Casio began packing immense functionality into smaller, more wearable form factors. Technically, Casio still produces the 3721 module, as
What exactly does this module do? While
This is the 3721’s party trick. When you enter Stopwatch Mode, the analog hands freeze (to save power) and the digital display takes over. The 3721 is not just a simple digital