16 size 21 jewels adjusted temp and 6 positions. Case marked �Hamilton Watch Co. 10K gold filled Lancaster, PA�. Open-face, screw-down case. Scarce double-sunk porcelain �Railway Special� dial. Lever-set movement. Black steel hands. CONDITION: Case is excellent. Movement exhibits just light surface scratches. Dial is excellent, free of hairlines and chips. Hands are excellent. Fitted with a beveled glass dome crystal. An exceptional example. CODE-POC.