Very nice original Ships Chronometer. The back as well as the brass plaque match: U.S.S.B. No. 894 .\\Nice running lever set movement with raised gold jewel settings and bright steel work. Free sprung balance. Up and down indicator work and watch is running. Not restored so no warranty. Please see pictures of the mahogany box and the brass work which is nice but the lacquer is crazing but in good shape. Neat time piece WW-1 era I think? Serial number is 15,540,597 Year is 1910!