It's obvious when you see it running.Le Redditeur wrote: ↑Fri Sep 25, 2020 3:26 pmTo be fair, I can't understand the purpose of the three small dials inside the clock, nor the "Units per Hour" markings one the outside. It probably makes sense on some context, or it's obvious if you see the click working, but from a still picture I can't get it.
The right sub dial is for minutes, the left is hours, the large second hand is for seconds. All of those are for the stopwatch function. The regular seconds are on the small sub dial.
So it can count up to thirty minutes on the right, at which point the hour dial will move half a step, up to twelve hours. When the Daytona came out there were basically no watches that had a 60 minute counter for the chronograph. Even today most don't.
Upper pusher is start and stop, lower is reset and the midle one is the regular crown, of course.
The pushers are screw down pushers, meaning you have to unscrew them before use. It's not water tight otherwise. Thus you can't use the chronograph function under water.
For that you'd need a dive watch. Even if a watch claims to be water tight for 200 BAR that excludes the chronograph function unless it's specifically a diver's watch.
The numbers on the bezel are simple. Start at the first interval, stop at the second and the second hand will point to the frequency. For driving that could be average speed. Stop it after exactly one mile or km and you'll have your average mph or km/h.
Fun fact: That's a Rolex Daytona, as mentioned. You can just go and buy that one right now. But if you want a steel one instead of one in precious metal you won't get one or have to pay a massive premium on the gray market. Not just Nintendo can do artificial scarcity.