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Hello Trev, I've now head back from the Dublin Assay Office. Unfortunately they have no record of a hallmark for H.Dillon & Company Shamrock Chambers, Dame Street Dublin or for The Swiss Gem Company 51 Lower O'Connell Street Dublin. They informed me that sometimes during the period of the 1940's...

Hello Trev, Some further info for you. My father Harry Dillon, would bring in the Gold Vitalis Watches and send them up to the Dublin Assay Office for the necessary import markings. The watches, that he produced with the Vitalis watch movements, used rolled gold cases and so did not need any hallmar...

Hello. Very dear friends of my family ran The Vitalis Watch Company. They were Jean and Genette Kramkimmel. The company was based in La Chaux-de-Fonds. My father Harry Dillon was the only importer of Vitalis Watch into Dublin from 1949-1959. His business was H. Dillon & Company, Shamrock Chamber...