On The Springing And Adjusting Of Watches Being A Description | Desertcart SINGAPORE
On the Springing and Adjusting of Watches: Being a Description of the Balance Spring and the Compensation Balance With Directions for Applying the Spring and Adjusting for Isochronism and Temperature
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On the Springing and Adjusting of Watches: Being a Description of the Balance Spring and the Compensation Balance With Directions for Applying the Spring and Adjusting for Isochronism and Temperature
