What's a chronograph watch do?

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Tags

1. #hours
2. #stopwatch
3. #complex
4. #seconds
5. #chronographs
6. #watch
7. #measure
8. #second
9. #multiple
10. #complications
11. #combined
12. #specific
13. #chronograph
14. #hands
15. #additional
16. #minutes
17. #independent
18. #tenths
19. #display