There is a thread on this subject from two years ago that didn’t really answer my question. So rather than bump that one back up the main page I’ll ask it here (if that’s okay with the mods).
Most chronograph wristwatches have three small dials. Pic. One dial has the digits 30-10-20, the next 12-3-6-9, and the last has 60-20-40. As I understand it each is for recording a certain unit of time. My question is which is for which?
My wristwatch chronograph (a Hamilton Khaki) has three small dials: “10-20-30,” “0-2-4-6-8” and “20-40-60.”
The bottom “20-40-60” dial keeps track of seconds all the time (normal usage). The “second hand” of the actual watch face is only used when using the stopwatch function.
The “0-2-4-6-8” marks tenths of the second, and only moves its hands to display after the chronograph is stopped.
The “10-20-30” marks the minutes of chronograph use, and moves during timekeeping.
Hope this helps.
