See The Time (Discreetly)

The Apple Watch typically “wakes up” when you raise your wrist, bringing the display to full brightness and allowing you to check the time without tapping on anything. But Raise to Wake isn’t always the best option in some settings, but there is an alternative.

With your Apple Watch’s screen off, gently turn the Digital Crown upwards. You should slowly see the screen “wake up” — allowing you to check time and other information without blinding yourself late at night or when in a darker environment. This behavior is editable in General > Wake Screen > Wake Screen on Crown Up.