Hi forum, I know it's an odd topic header, but please bear with me, especially as I'm a newbie here and useless at Physics. I felt this would be the best place to look for advice and understanding on magnetic fields. I ask as I am a wrist watch fan...and since the release of a Rolex claiming to be resistant to magnetic fields of 1,000 gauss there has been much debate over magnetic fields and their impact on watches amongst fellow watch enthusiasts, which I would like help clarifying. I have two questions: 1) Various watch manufacturers use a variety of measurements for the magnetic fields that their watches can resist, can these (listed below) be directly compared, and if so what are the conversions? Gauss Oersted A/m For example, some claim to work in fields of 4,800A/m which sounds impressive but my initial conversion in to Gauss attempts suggest it is not!? 2) Is there a simple experiment I could use to measure the magnetic field of household objects such as laptops, televisions, stereos etcetera? This would allow watch fans to understand what impact these may have on their timepieces, and perhaps explain why some watches lose significant time after being left near such household goods. Thanks for taking the time to read this and any help you can offer.