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Genuine Swiss-made Bergeon 30103 magnetic compass with case, brand new in original packing. A precision jewelled compass featuring a sapphire jewel on hardened steel point and chromium-plated brass body with an engraved 13 mm dial. Used to detect magnetization in watch components — a needle attracted at one end and repelled at the other indicates magnetism; attracted at both ends means no magnetism. An essential diagnostic tool for certified watchmakers and repair technicians.
| Parameter | Value |
|---|---|
| Brand | Bergeon |
| Model | 30103 |
| Origin | Made in Switzerland |
| Pivot | Sapphire jewel on hardened steel point |
| Body | Chromium-plated brass |
| Dial | Engraved, Ø 13 mm |
| Principle | Magnetic attraction/repulsion detection |
| Condition | Brand New In Original Packing |
Q1: Is this a genuine Bergeon compass?
A: Yes — this is a genuine Bergeon 30103 compass with case, made in Switzerland and brand new in original packing. It is not a generic or third-party copy.
Q2: How does the magnetic compass work?
A: When one end of the compass needle is attracted and the other repelled, the tested object is magnetized. If the needle is attracted at both ends, there is no magnetism present.
Q3: What makes it a precision tool?
A: The sapphire jewel on hardened steel point provides a precision pivot — ensuring smooth, friction-free needle movement for accurate magnetic readings. The chromium-plated brass body ensures durability.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
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