Set timers on Apple Watch - Apple Support
support.apple.com › guide › watchOpen the Timers app on your Apple Watch. Scroll to the top of the screen, then tap Custom. Tap hours, minutes, or seconds; turn the Digital Crown to adjust. Tap Start. Create multiple timers Open the Timers app on your Apple Watch. Create and start a timer. Tip: To assign a label such as “Pizza” to a timer, use Siri to create the timer.