Ring mouth locking tooth assembly waterproof structure and watch

The utility model provides a ring opening and tooth locking assembly waterproof structure and a watch. The ring opening and tooth locking assembly waterproof structure comprises a watchcase, glass, a waterproof rubber ring, a tooth ring and a movement. The meter shell comprises a bearing table and a connecting ring, the bearing table is provided with a containing groove, the connecting ring is connected to the outer edge of the bearing table, and the inner side of the connecting ring is provided with an annular first boss. The glass is located on the inner side of the connecting ring and located above the first boss. The waterproof rubber ring is clamped between the glass and the first boss. The inner side of the tooth ring is in threaded connection with the outer side of the connecting ring, an annular pressing ring is arranged at the top of the tooth ring, and the glass is clamped between the pressing ring and the waterproof rubber ring. The movement is located in the containing groove. The watch comprises