Currently working but hasn’t been tested for time, balance staff & wheel are good, stiff to wind. It may need a service or repair to keep perfect time and is sold as is. The gold plated case is 51mm in diameter. 1916 Hamilton, Grade 974, Model 2, 17J, 16S, stem set, stem wind, adjusted with date serial number 1174435. Nice dial, just needs a clean. Superb case.