WATCHMAKERS COMPASS

BERGEON 30104

Precision compass for testing watch magnetism Jewelled model sapphire on hardened steel point, chromium plated brass. Engraved 13 mm dial.

Principle: An object is magnetized when one end of the compass-needle is attracted and the other repelled by it. If the needle is attracted at both ends, there is no magnetism.

Compass without case Genuine Swiss made Bergeon tool, has been copied many times but never equalled.