Horology Zone Free Watch School
Watch Repair Tools Shop

Free Watch School Repairing Tools Shop

Horology A ~ Z

Horology N
NIB Abbreviation of " New In Box "
Nivarox A trade name for a hairspring alloy with superior temperature compensating properties, available in varying grades: I, II, etc.
NOS Abbreviation of " New Old Stock ", An old watch which has never been used, or even sold.

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