This is an extremely fine and early example of a Sargent & Greenleaf model No: 3 timelock circa 1876. There are a number of features which confirm the early design. The fine engraving and large proud hinges together with the 46 hour movements all point to such an early date.

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The movements are a little later than the case, being circa 1880, the original ones would have had black dials. Note also the absence of the ' Geneva Gear ' which prevents over-winding of the mainspring.

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My thanks for John Errol, for dating this lock and for parting with it.