The mechanism is fine. It has simply been told the wrong twelve hours. If your date flips over at lunchtime instead of midnight, nothing is broken and nothing needs a watchmaker. The watch is running twelve hours out. A mechanical watch has no way of knowing whether it is morning or evening, so it changes […]

Before assuming it is broken, work out which hand you are looking at. A stopped seconds hand looks like a dead watch and very often is not, because on a great many watches the large central seconds hand is not the running seconds at all. On any chronograph it is the stopwatch hand, and it

Wrist time, not wear, is what keeps an automatic running. An automatic that has stopped by morning is the most reported watch fault and the least often an actual fault. An automatic winds from wrist motion, and a desk job does not produce much of it. Most of these watches are simply never reaching a

A spring near the end of its wind delivers less force, and less force runs slow. A watch that runs slow is a different problem from one that runs fast, and confusing the two sends people to the wrong fix. Gaining is usually magnetism and costs nothing to correct. Losing is usually energy or wear,