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Question about the Hamilton 21 Locking Mechanism "Click" to Login or Register 
posted
Does anybody know what tool is used to operate the balance locking mechanism on the Hamilton 21 marine chronometer?
 
Posts: 767 | Location: Los Osos, California USA | Registered: December 12, 2002
posted
Hi,
Allen wrench should work.
 
Posts: 136 | Location: Warren, Oregon in the USA | Registered: May 28, 2008
IHC Member 1335
Picture of Tom Brunton
posted
Of course, only certain later models were factory equipped with a balance lock Wink
 
Posts: 1746 | Location: Aylmer, Ontario in Canada | Registered: December 15, 2009
Picture of Robert Boll
posted
To answer Jerry's question the tool to use for a Hamilton model#21. is called a balance brake locking wrench...
 
Posts: 77 | Location: Pennsylvania in the USA | Registered: January 14, 2014
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