Hamilton 18s 940 Railroad Grade Pocket Watch – Professional Service & Restoration Case Study

The Hamilton 18s 940 Railroad Grade pocket watch remains one of the most iconic American timepieces of the early 20th century—valued by collectors for its robust 21-jewel movement, precise timekeeping, and important role in railroad safety standards. In this detailed repair case study, I document the complete servicing and restoration of an original Hamilton 940, including diagnosis of mechanical issues, full movement overhaul, and the precision adjustments required to bring this historic railroad watch back to reliable performance. If you own a Hamilton 940 or any vintage railroad-grade pocket watch, this case study highlights the level of skilled, careful workmanship your timepiece can receive at TimePieceShoppe.