I've got a Tag Heuer Kirium, it is an automatic watch, which I never take off. Had a strange thing happen recently, had a weekend away at Easter, had a few kickabouts with my lads and on the Saturday ended up playing in a game for about an hour. It was mainly kids/teenagers so I went in goal, was quite active and made a lot of saves. Next morning, my watch was an hour fast and has continued to be like that since, it was running about 4 seconds a minute quick. Did 30 minutes on the treadmill at the gym on Tuesday and since then, the watch has been running perfectly again.
Anyone experienced this before and any ideas what has gone on?