Watchcase with detachable bezel and watch thereof

A watchcase with a detachable bezel detachably installed on an upper end of the watchcase, comprising:

• at least two clamping members, and the bezel comprises at least two slots corresponding to engage with the at least two clamping members;
• and wherein
• each of the at least two clamping members comprises a clamping portion, an elastic member applied to lock the clamping portion in the corresponding slot, and an operation member connected to the clamping portion and controlling the clamping portion to move so as to detach the clamping portion from the slot;
• wherein the operation member of a first one of the at least two clamping members comprises a crown and a corresponding slide block;
• a sliding chamber is formed at a first side wall of the watchcase, and the slide block is installed in the sliding chamber, the lower portion of the clamping portion of the first one of the at least two clamping members is connected to the slide block, and the upper portion of the clamping portion of the first one of the at least two clamping members extends upwards to fit with the corresponding slot;
• and
• the slide block is pushed inwards to be unlocked by pressing the crown, and the elastic member of the first one of the at least two clamping members is arranged between an inner wall of the slide block and an inner wall of the sliding chamber.