To change the date: pull the biggest crown (right) a little (the first position). Push to fix.
To set the time: pull the crown all the even larger (second position). Push to fix.
To set the secondary hour (to a different time zone): Pull the left button and adjust. Push to confirm.
Stopwatch operation: the upper right ring to start, pause and stop the count. Press the lower button (to reset the chronograph to 0).
I like the lightness of this watch on my wrist, despite its imposing size. The quartz movement is precise and the watch does not require rewinding. The miniature battery which powers its movement is supposed to last about 2 years, after which it should be replaced by an authorized dealer. It has a 3 ATM, which means it is rainproof, but should not be immersed in water.
I love the leather strap, very easy to adjust, and I like the look of this watch. I held the fifth star because I find the dial a bit difficult to read. The hour and minute are gray on a black face. Also the main dial shows only the numbers for hours, 7, 8, 10 and 11. It's actually easier to read high time because the numbers are printed, even gray and yellow for the main hours to half an hour . If this watch is designed to be easier to read, he would have scored top marks with me.