@wattsonwatches: You’ve probably used one hundreds of times without knowing what it’s actually called. A chronograph is essentially a stopwatch built into your watch, allowing you to independently measure elapsed seconds, minutes and, depending on the model, hours. This 1980s Omega Speedmaster demonstrates it perfectly. Start. Stop. Reset. Follow Watts On Watches for more simple watch tips. #wattsonwatches #chronograph #watchtips