Currently working, ticking a tad slower than it should and was tested over a 21 hour period and gained approx 30 seconds. It may need a service to keep perfect time and is sold as is. The 10k gold filled case is 50.5mm in diameter. 1950 Hamilton, Grade 992B, Model 5, 21J, 16S, lever set, stem wind, railroad grade, 6 adjusts with date serial number C287188. Dial is in poor condition, numerous cracks, needs replacing, stunning case.