"An Educational information to the heritage of British watchmaking. Horology admirers of all concentrations are absolutely sure to locate worth here." As well as his colleague Thomas Earnshaw, the pair would create simplified and realistic maritime chronometers. In Doxa's modern selection, standout favorites include the Sub 300T, Sub 200 T.Graph, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/