Which of the following is a common display for date on a watch?

The common display for the date on a watch is the aperture. An aperture is a small window or opening on the dial of a watch that allows the date to be read easily. This feature is often designed to be visually discreet while providing a functional purpose, giving the wearer quick access to the date without the clutter of additional hands or displays.

While other options like a digital screen can indeed show the date, they are less common in traditional analog watch designs, which usually feature an aperture. Analog hands typically indicate the time rather than the date, making them less relevant for this specific function. A bezel display might also serve various functions (such as tracking elapsed time or another measurement) but is not typically used for showing the date. The aperture remains the most widely recognized and traditional method for displaying the date in mechanical and quartz watches.