- What? Oh. Oh. Well, what happened to my wristwatch?
- Why, is it broken?
- Well, I guess I must've lost it someplace.

11 seconds sound clip from the The Philadelphia Story movie soundboard.

You can hear this line at 01:34:25 in the Blu-ray version of the movie.

Quote context

[...]

- I said a lot of things last night, it seems.

- Okay. No dice.

- Also no regrets about last night, huh?

- Why should I have?

- Oh, Tracy, you're wonderful.

- You don't know what I mean. I'm asking you. Tell me straight out. Tell me the reason why I should have... have. No, don't. Just tell me, what time is it?

- What? Oh. Oh. Well, what happened to my wristwatch?

- Why, is it broken?

- Well, I guess I must've lost it someplace.

- I can't tell you how extremely sorry I am to hear that.

- There, on the table. Oh.

- I wonder who found it. I'll offer a reward or something.

- I don't think that any reward will be expected.

[...]