Some models, especially diver's watches, not only have screw-down crowns but also screw-down pushers.
- Turn the ring surrounding the pusher counterclockwise until resistance is felt. The pusher can then be operated.
- After operation, close the ring until resistance is felt.
Only when the pushers are screwed down are they blocked and the watch water-resistant to the specified depth. Pushers must not be operated under water.