Very cool. Even just doing cycle checks was enough to get a lot of abuse from some of the guys running the equipment.
I was only "certified" to do an actual time study after about 3 months, so I only did a couple in the end. They would test all of us that did these studies (4 of us in total in the department at that time) on how well we judged effort that people were putting out against the standard, so their performance against standard. So we had a person who would walk down a hallway a known distance, and we had to judge by eye if they were walking at 100% or 80%, or 130% or whatever of what "normal" was. We also did a similar exercise with the manager of my department dealing a deck of cards. He would deal out the cards 20 times in a row, and we would write down the percentage of how fast he was working for each deal. In both cases someone would time the actual events, and calculate the actual percentage against the standard, and our estimates had to be +/- 5% before we could do a time study. As you know, this is done so that people can't work extra slow during the study to cheat the system (our plant had an incentive system)...and yes they would try!
After 3 months in there I went to the plant engineering manager and begged him to give me a job in his department, and a month later they offered me that job. Never regretted making that move since the industrial engineering department was eventually dissolved about 5 years later.
We didn't use nice stopwatches like you are using - I can even recall there being a brand on them actually. Start and stop on these was a slider (kind of like you would see on the side of a repeater) and then reset was a button. You started the time on the first watch, then reset the second watch while writing down the time of the last element you timed, and the performance rating of that element. Then you started the first watch again, stopped the second watch at the same time, wrote everything down, and reset that watch while the first watch was timing a new element, and so on. Some of the elements were short, so you had to move fast, and hope you didn't get screwed up and reset the wrong watch!
Fun days that seemed to last weeks....
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