Omega is the official timekeeper of the Olympics—we’re sure you’ve spotted the company’s logo on every scoreboard from the pool to the track—and that means they have a big job to do. A millisecond can make the difference between gold and silver, dreams realized or crushed. That’s why we asked the timekeeping experts for all the details on how they’re doing it, day after day, by the numbers—click through the gallery to find out now.

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