Does anyone know why most chronographs, automatic and quartz, have a 30 minute counter? I have a Citizen 2100 chronograph - link here. It has a 12-hour counter and a 60 minute counter. This is my first chronograph. Reading the minutes and hours is simple because they match up to how the normal watch-keeping functions work: the minute counter pointing to the right is 15 minutes, down is 30 minutes, left is 45 minutes, etc. The same with the hour counter. This is inline with the big hands and is intuitive. However, most chronographs including the famous Omega Speedmaster have a 30-minute counter. I think this means that the 30 minute counter goes around twice per hour, so when it's pointing straight up it can either mean 0 *or* 30 minutes. Likewise when it points downwards it could mean 15 *or* 45 minutes. This seems baffling and confusing - to find out how many minutes have past you would need to consult the hour dial also and figure out if the hand is past the halfway point of the hour mark. I suppose it could be beneficial if you needed more minute accuracy, but it seems like a really bad tradeoff. Does this bother anyone with chronographs? I flatly refuse to buy anything with a 30-minute counter for this reason, but I can't figure out how that became the "standard" in the first place.