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Does anybody know what tool is used to operate the balance locking mechanism on the Hamilton 21 marine chronometer? | |||
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Hi, Allen wrench should work. | ||||
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IHC Member 1335![]() |
Of course, only certain later models were factory equipped with a balance lock ![]() | |||
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To answer Jerry's question the tool to use for a Hamilton model#21. is called a balance brake locking wrench... | |||
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