This is part 3 of a three-part series about Derek Pratt’s reconstruction of John Harrison’s Longitude Prize-winning H4, which was the world’s first precision marine chronometer. This article was first published in ‘The Horological Journal’ (HJ) in April 2015, who we thank for graciously granting permission to republish on Quill & Pad.
Here we present the second part in a three-part series about the making of Derek Pratt’s reconstruction of John Harrison’s H4. This part was written by Carl Murray of Frodsham. This article was first published in ‘The Horological Journal’ (HJ) in March 2015, who we thank for permission to republish on Quill & Pad.
Here we present the first part in a three-part series about the making of Derek Pratt’s H4 reconstruction. This part was written by Roger Stevenson, chief watchmaker at Frodsham. This article was first published in the British Horological Journal (BHJ) in February 2015 and we thank them for permission to republish it on Quill & Pad.
Derek Pratt (1938 – 2009) was perhaps one of the most “complete” watchmakers of our time along with his friend George Daniels. The Swiss-based Englishman firmly was behind and part of many watches and projects that are today common knowledge, while his own name remains relatively hidden.