A Hamilton 401 Movement Story
Hamilton only manufactured 7,500 of the movements. The 401 went into six models, which include the Andrews, Stanley, Livingstone, Byrd, Ericsson, and Wilkinson – early 1930’s. The 401 movement came with 19 rubies and sapphire jewels, a double roller escapement, sapphire roller and pallet jewels, the Breguet hairspring, and a gold center wheel. It’s a […]
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