hello, I'm french and I just discover the forum. So please forgive my mistakes ! I want to present here my marine Chronometer that is just coming back from reparation. Please if you have more information about the horologist henry delolme i would be very interested ! I inherited this two-day marine chronometer, circa 1850, a few years ago ; here are the "before" pictures : Thanks to googl i find his "brother" : http://www.benwrightclocks.co.uk/clock.php?i=185 Although the box was very damaged, the movement worked very well (good accuracy, good power reserve) So I decided to do something for him. Firts, what about Henry Delolme ? Information are coming from here : https://watch-wiki.org/index.php?title=Delolme,_Henry Henry (John Charles Henry) Delolme was born in 1799 in Brünswick, Germany. It is the youngest son of Antoine Nicolas Delolme (1759-1852), watchmaker of the court, himself son and grandson of clockmaker. Henry settles in London (48 Rathbone Place, Oxford Street), we do not know when ... He married on January 9, 1829 Jane Amelia Labarthe at St Pancras Church. They will have 6 children between 1829 and 1841, of which the 4th, Charles John (1837) will also watchmaker He mainly realizes pocket watches on the basis of Swiss calibres and marine chronometers. At the World Exhibition in London in 1851 he presented: - 7 gold watches; - 2 marine chronometers with isochronous pendular springs (?); - but also a model of stethoscope (?). Catalogue here : http://gallica.bnf.fr/ark:/12148/bpt6k6207823m (p. 85 n°19) Among his pupils, a certain Wilhelm Brocking who will also realize navy chronometers. He died in 1890, at the age of 91.