A watch crown can be found on the side of the watch case. It enables you to set or modify the time. Relatively, a tube is located on the same spot wherein the stem is inserted so the watch crown can sit on it. Sofly fabricates crowns and tubes that can be used for your ETA watches. If you are looking for an item that is not listed below, please email us at [email protected], we will try our best to find it! Get $5 off with orders over $50 with coupon: SOFLYGO.