```json
{
  "TragedyDegree": 2,
  "ComedyDegree": 5
}
```

Explanation:

Tragedy Degree: The story lacks deep tragic elements. The only minor sad element is Tommy's watch stopped working, which was a gift from his late grandfather. However, this is quickly resolved in a warm and comforting manner by Mr. Hammond. Hence, the Tragedy Degree is rated as 2, indicating almost no tragic elements.

Comedy Degree: The story has a light-hearted and uplifting tone, especially with Mr. Hammond's gentle and kind nature, which brings joy to the townspeople. Although it doesn't have strong comedic aspects or extremely happy moments, it does convey a sense of emotional delight and mild humor through Mr. Hammond's interactions with Tommy. Therefore, the Comedy Degree is rated as 5, reflecting a relatively light-hearted and pleasant narrative.
