Anti-magnetic
Sinn Model 756 Antimagnetic
Mechanical movements are easily influenced by the magnetic fields often found in common everyday places. This problem is generally solved by the use of anti- or nonmagnetic components in the movement. Some companies, such as Sinn, IWC, and Bell & Ross, take things a step further and encase movements in anti-magnetic cores such as the one shown here from Sinn‘s Model 756, the Duograph. Here the inner core is easily recognizable, as are the dial, movement holder ring, and second case back. These precautions make the watch anti-magnetic to 80,000 a/M—far exceeding the norms demanded by DIN and ISO.
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