Reference design(s): (focused on chronograph function/rotation, and not graphics)
watch function:
- hour hand (main: 12min tick/step)
- minute hand (main: tick/step)
- seconds 60 (sub-clock, left: tick/step)
chronograph: (stopwatch)
- seconds sweep hand (main: smooth)
- minutes 30 (sub-clock, top: tick/step)
- hours 6 (sub-clock, bottom: 15min tick/step)
