All in Good Time

[This] is the remarkable story of George Daniels (1926-2011), the master craftsman, who was born into poverty but raised himself to become the greatest watchmaker of the twentieth century. [He] stands alone ... as the inventor of the ... co-axial escapement, the first substantial advance in portable mechanical timekeeping over the lever escapement, which has dominated ever since its invention in 1759. ..."--Jacket.